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Finding the Fourth Proportional to 539,802, 744,992.37 and 313,447.50

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Solution

The fourth proportional to 539,802, 744,992.37 and 313,447.50 is: 432,595.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,802 : 744,992.37 = 313,447.50 : x
  2. Step 2: Convert to fraction form
    539,802/744,992.37 = 313,447.50/x
  3. Step 3: Cross multiply
    539,802x = 744,992.37 × 313,447.50
  4. Step 4: Simplify right side
    539,802x = 233,515,995,895.58
  5. Step 5: Solve for x
    x = 233,515,995,895.58/539,802
  6. Step 6: Final answer
    x = 432,595.65

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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.