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Finding the Fourth Proportional to 539,453.52, 744,697.80 and 313,055.28

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Solution

The fourth proportional to 539,453.52, 744,697.80 and 313,055.28 is: 432,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,453.52 : 744,697.80 = 313,055.28 : x
  2. Step 2: Convert to fraction form
    539,453.52/744,697.80 = 313,055.28/x
  3. Step 3: Cross multiply
    539,453.52x = 744,697.80 × 313,055.28
  4. Step 4: Simplify right side
    539,453.52x = 233,131,578,294.38
  5. Step 5: Solve for x
    x = 233,131,578,294.38/539,453.52
  6. Step 6: Final answer
    x = 432,162.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.