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Finding the Fourth Proportional to 539,897, 745,057.92 and 313,557.08

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Solution

The fourth proportional to 539,897, 745,057.92 and 313,557.08 is: 432,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,897 : 745,057.92 = 313,557.08 : x
  2. Step 2: Convert to fraction form
    539,897/745,057.92 = 313,557.08/x
  3. Step 3: Cross multiply
    539,897x = 745,057.92 × 313,557.08
  4. Step 4: Simplify right side
    539,897x = 233,618,185,826.07
  5. Step 5: Solve for x
    x = 233,618,185,826.07/539,897
  6. Step 6: Final answer
    x = 432,708.81

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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.