Home / 748,905.05-1,123,357.58-216,443.45

Finding the Fourth Proportional to 748,905.05, 1,123,357.58 and 216,443.45

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Solution

The fourth proportional to 748,905.05, 1,123,357.58 and 216,443.45 is: 324,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,905.05 : 1,123,357.58 = 216,443.45 : x
  2. Step 2: Convert to fraction form
    748,905.05/1,123,357.58 = 216,443.45/x
  3. Step 3: Cross multiply
    748,905.05x = 1,123,357.58 × 216,443.45
  4. Step 4: Simplify right side
    748,905.05x = 243,143,389,116.63
  5. Step 5: Solve for x
    x = 243,143,389,116.63/748,905.05
  6. Step 6: Final answer
    x = 324,665.18

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Double scale
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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.