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Finding the Fourth Proportional to 539,899, 745,060.68 and 313,559.08

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Solution

The fourth proportional to 539,899, 745,060.68 and 313,559.08 is: 432,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,899 : 745,060.68 = 313,559.08 : x
  2. Step 2: Convert to fraction form
    539,899/745,060.68 = 313,559.08/x
  3. Step 3: Cross multiply
    539,899x = 745,060.68 × 313,559.08
  4. Step 4: Simplify right side
    539,899x = 233,620,541,364.97
  5. Step 5: Solve for x
    x = 233,620,541,364.97/539,899
  6. Step 6: Final answer
    x = 432,711.57

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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.