Home / 748,971.08-1,123,464.82-216,496.72

Finding the Fourth Proportional to 748,971.08, 1,123,464.82 and 216,496.72

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Solution

The fourth proportional to 748,971.08, 1,123,464.82 and 216,496.72 is: 324,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,971.08 : 1,123,464.82 = 216,496.72 : x
  2. Step 2: Convert to fraction form
    748,971.08/1,123,464.82 = 216,496.72/x
  3. Step 3: Cross multiply
    748,971.08x = 1,123,464.82 × 216,496.72
  4. Step 4: Simplify right side
    748,971.08x = 243,226,447,482.91
  5. Step 5: Solve for x
    x = 243,226,447,482.91/748,971.08
  6. Step 6: Final answer
    x = 324,747.45

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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.