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Finding the Fourth Proportional to 632,706.76, 873,152.46 and 387,687.26

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Solution

The fourth proportional to 632,706.76, 873,152.46 and 387,687.26 is: 535,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,706.76 : 873,152.46 = 387,687.26 : x
  2. Step 2: Convert to fraction form
    632,706.76/873,152.46 = 387,687.26/x
  3. Step 3: Cross multiply
    632,706.76x = 873,152.46 × 387,687.26
  4. Step 4: Simplify right side
    632,706.76x = 338,510,086,962.54
  5. Step 5: Solve for x
    x = 338,510,086,962.54/632,706.76
  6. Step 6: Final answer
    x = 535,018.92

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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.