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Finding the Fourth Proportional to 632,007.39, 872,170.14 and 345,527.40

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Solution

The fourth proportional to 632,007.39, 872,170.14 and 345,527.40 is: 476,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,007.39 : 872,170.14 = 345,527.40 : x
  2. Step 2: Convert to fraction form
    632,007.39/872,170.14 = 345,527.40/x
  3. Step 3: Cross multiply
    632,007.39x = 872,170.14 × 345,527.40
  4. Step 4: Simplify right side
    632,007.39x = 301,358,680,831.84
  5. Step 5: Solve for x
    x = 301,358,680,831.84/632,007.39
  6. Step 6: Final answer
    x = 476,827.78

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Double scale
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Similar ratio
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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.