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Finding the Fourth Proportional to 657,925.22, 907,938.17 and 356,119.22

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Solution

The fourth proportional to 657,925.22, 907,938.17 and 356,119.22 is: 491,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,925.22 : 907,938.17 = 356,119.22 : x
  2. Step 2: Convert to fraction form
    657,925.22/907,938.17 = 356,119.22/x
  3. Step 3: Cross multiply
    657,925.22x = 907,938.17 × 356,119.22
  4. Step 4: Simplify right side
    657,925.22x = 323,334,226,588.34
  5. Step 5: Solve for x
    x = 323,334,226,588.34/657,925.22
  6. Step 6: Final answer
    x = 491,445.26

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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.