Home / 674,741.10-930,989.25-402,897

Finding the Fourth Proportional to 674,741.10, 930,989.25 and 402,897

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Solution

The fourth proportional to 674,741.10, 930,989.25 and 402,897 is: 555,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,741.10 : 930,989.25 = 402,897 : x
  2. Step 2: Convert to fraction form
    674,741.10/930,989.25 = 402,897/x
  3. Step 3: Cross multiply
    674,741.10x = 930,989.25 × 402,897
  4. Step 4: Simplify right side
    674,741.10x = 375,092,775,857.25
  5. Step 5: Solve for x
    x = 375,092,775,857.25/674,741.10
  6. Step 6: Final answer
    x = 555,906.22

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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.