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Finding the Fourth Proportional to 657,773.12, 907,726.91 and 355,967.12

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Solution

The fourth proportional to 657,773.12, 907,726.91 and 355,967.12 is: 491,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,773.12 : 907,726.91 = 355,967.12 : x
  2. Step 2: Convert to fraction form
    657,773.12/907,726.91 = 355,967.12/x
  3. Step 3: Cross multiply
    657,773.12x = 907,726.91 × 355,967.12
  4. Step 4: Simplify right side
    657,773.12x = 323,120,933,899.20
  5. Step 5: Solve for x
    x = 323,120,933,899.20/657,773.12
  6. Step 6: Final answer
    x = 491,234.63

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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.