Home / 748,899.70-1,123,349.55-216,438.10

Finding the Fourth Proportional to 748,899.70, 1,123,349.55 and 216,438.10

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Solution

The fourth proportional to 748,899.70, 1,123,349.55 and 216,438.10 is: 324,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,899.70 : 1,123,349.55 = 216,438.10 : x
  2. Step 2: Convert to fraction form
    748,899.70/1,123,349.55 = 216,438.10/x
  3. Step 3: Cross multiply
    748,899.70x = 1,123,349.55 × 216,438.10
  4. Step 4: Simplify right side
    748,899.70x = 243,135,642,237.86
  5. Step 5: Solve for x
    x = 243,135,642,237.86/748,899.70
  6. Step 6: Final answer
    x = 324,657.15

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Half scale
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Double scale
Find fourth proportional to 748,900.70, 1,123,351.05 and 216,439.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.