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Finding the Fourth Proportional to 674,633.46, 930,957.81 and 372,809.46

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Solution

The fourth proportional to 674,633.46, 930,957.81 and 372,809.46 is: 514,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,633.46 : 930,957.81 = 372,809.46 : x
  2. Step 2: Convert to fraction form
    674,633.46/930,957.81 = 372,809.46/x
  3. Step 3: Cross multiply
    674,633.46x = 930,957.81 × 372,809.46
  4. Step 4: Simplify right side
    674,633.46x = 347,069,878,428.88
  5. Step 5: Solve for x
    x = 347,069,878,428.88/674,633.46
  6. Step 6: Final answer
    x = 514,456.96

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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.