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Finding the Fourth Proportional to 657,562.88, 907,384.96 and 402,879.44

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Solution

The fourth proportional to 657,562.88, 907,384.96 and 402,879.44 is: 555,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,562.88 : 907,384.96 = 402,879.44 : x
  2. Step 2: Convert to fraction form
    657,562.88/907,384.96 = 402,879.44/x
  3. Step 3: Cross multiply
    657,562.88x = 907,384.96 × 402,879.44
  4. Step 4: Simplify right side
    657,562.88x = 365,566,744,549.22
  5. Step 5: Solve for x
    x = 365,566,744,549.22/657,562.88
  6. Step 6: Final answer
    x = 555,941.88

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1.5x scale

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.