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Finding the Fourth Proportional to 539,509.47, 744,519.47 and 294,493.29

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Solution

The fourth proportional to 539,509.47, 744,519.47 and 294,493.29 is: 406,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,509.47 : 744,519.47 = 294,493.29 : x
  2. Step 2: Convert to fraction form
    539,509.47/744,519.47 = 294,493.29/x
  3. Step 3: Cross multiply
    539,509.47x = 744,519.47 × 294,493.29
  4. Step 4: Simplify right side
    539,509.47x = 219,255,988,189.36
  5. Step 5: Solve for x
    x = 219,255,988,189.36/539,509.47
  6. Step 6: Final answer
    x = 406,398.78

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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.