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Finding the Fourth Proportional to 888,309.59, 1,225,863.72 and 480,411.95

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Solution

The fourth proportional to 888,309.59, 1,225,863.72 and 480,411.95 is: 662,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,309.59 : 1,225,863.72 = 480,411.95 : x
  2. Step 2: Convert to fraction form
    888,309.59/1,225,863.72 = 480,411.95/x
  3. Step 3: Cross multiply
    888,309.59x = 1,225,863.72 × 480,411.95
  4. Step 4: Simplify right side
    888,309.59x = 588,919,574,030.14
  5. Step 5: Solve for x
    x = 588,919,574,030.14/888,309.59
  6. Step 6: Final answer
    x = 662,966.59

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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.