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Finding the Fourth Proportional to 674,425.44, 930,627.48 and 402,442.92

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Solution

The fourth proportional to 674,425.44, 930,627.48 and 402,442.92 is: 555,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,425.44 : 930,627.48 = 402,442.92 : x
  2. Step 2: Convert to fraction form
    674,425.44/930,627.48 = 402,442.92/x
  3. Step 3: Cross multiply
    674,425.44x = 930,627.48 × 402,442.92
  4. Step 4: Simplify right side
    674,425.44x = 374,524,440,483.44
  5. Step 5: Solve for x
    x = 374,524,440,483.44/674,425.44
  6. Step 6: Final answer
    x = 555,323.71

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Double scale
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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.