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Finding the Fourth Proportional to 572,729.82, 792,079.74 and 500,985.15

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Solution

The fourth proportional to 572,729.82, 792,079.74 and 500,985.15 is: 692,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,729.82 : 792,079.74 = 500,985.15 : x
  2. Step 2: Convert to fraction form
    572,729.82/792,079.74 = 500,985.15/x
  3. Step 3: Cross multiply
    572,729.82x = 792,079.74 × 500,985.15
  4. Step 4: Simplify right side
    572,729.82x = 396,820,187,355.86
  5. Step 5: Solve for x
    x = 396,820,187,355.86/572,729.82
  6. Step 6: Final answer
    x = 692,857.56

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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.