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Finding the Fourth Proportional to 674,356.32, 930,671.04 and 372,608.64

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Solution

The fourth proportional to 674,356.32, 930,671.04 and 372,608.64 is: 514,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,356.32 : 930,671.04 = 372,608.64 : x
  2. Step 2: Convert to fraction form
    674,356.32/930,671.04 = 372,608.64/x
  3. Step 3: Cross multiply
    674,356.32x = 930,671.04 × 372,608.64
  4. Step 4: Simplify right side
    674,356.32x = 346,776,070,501.79
  5. Step 5: Solve for x
    x = 346,776,070,501.79/674,356.32
  6. Step 6: Final answer
    x = 514,232.70

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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.