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Finding the Fourth Proportional to 539,892.88, 745,038.64 and 294,867.48

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Solution

The fourth proportional to 539,892.88, 745,038.64 and 294,867.48 is: 406,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,892.88 : 745,038.64 = 294,867.48 : x
  2. Step 2: Convert to fraction form
    539,892.88/745,038.64 = 294,867.48/x
  3. Step 3: Cross multiply
    539,892.88x = 745,038.64 × 294,867.48
  4. Step 4: Simplify right side
    539,892.88x = 219,687,666,279.43
  5. Step 5: Solve for x
    x = 219,687,666,279.43/539,892.88
  6. Step 6: Final answer
    x = 406,909.73

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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.