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Finding the Fourth Proportional to 674,357.43, 930,677.58 and 368,480.31

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Solution

The fourth proportional to 674,357.43, 930,677.58 and 368,480.31 is: 508,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,357.43 : 930,677.58 = 368,480.31 : x
  2. Step 2: Convert to fraction form
    674,357.43/930,677.58 = 368,480.31/x
  3. Step 3: Cross multiply
    674,357.43x = 930,677.58 × 368,480.31
  4. Step 4: Simplify right side
    674,357.43x = 342,936,363,188.45
  5. Step 5: Solve for x
    x = 342,936,363,188.45/674,357.43
  6. Step 6: Final answer
    x = 508,537.98

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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.