Home / 748,569.78-1,122,555.78-433,248.12

Finding the Fourth Proportional to 748,569.78, 1,122,555.78 and 433,248.12

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Solution

The fourth proportional to 748,569.78, 1,122,555.78 and 433,248.12 is: 649,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,569.78 : 1,122,555.78 = 433,248.12 : x
  2. Step 2: Convert to fraction form
    748,569.78/1,122,555.78 = 433,248.12/x
  3. Step 3: Cross multiply
    748,569.78x = 1,122,555.78 × 433,248.12
  4. Step 4: Simplify right side
    748,569.78x = 486,345,181,280.13
  5. Step 5: Solve for x
    x = 486,345,181,280.13/748,569.78
  6. Step 6: Final answer
    x = 649,699.19

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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.