Home / 731,405.32-1,007,095.30-640,251.08

Finding the Fourth Proportional to 731,405.32, 1,007,095.30 and 640,251.08

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Solution

The fourth proportional to 731,405.32, 1,007,095.30 and 640,251.08 is: 881,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,405.32 : 1,007,095.30 = 640,251.08 : x
  2. Step 2: Convert to fraction form
    731,405.32/1,007,095.30 = 640,251.08/x
  3. Step 3: Cross multiply
    731,405.32x = 1,007,095.30 × 640,251.08
  4. Step 4: Simplify right side
    731,405.32x = 644,793,853,487.92
  5. Step 5: Solve for x
    x = 644,793,853,487.92/731,405.32
  6. Step 6: Final answer
    x = 881,582.12

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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.