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Finding the Fourth Proportional to 632,377.80, 872,671.84 and 377,679.76

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Solution

The fourth proportional to 632,377.80, 872,671.84 and 377,679.76 is: 521,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,377.80 : 872,671.84 = 377,679.76 : x
  2. Step 2: Convert to fraction form
    632,377.80/872,671.84 = 377,679.76/x
  3. Step 3: Cross multiply
    632,377.80x = 872,671.84 × 377,679.76
  4. Step 4: Simplify right side
    632,377.80x = 329,590,491,089.96
  5. Step 5: Solve for x
    x = 329,590,491,089.96/632,377.80
  6. Step 6: Final answer
    x = 521,192.38

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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.