Home / 645,884.20-967,904.70-476,079.40

Finding the Fourth Proportional to 645,884.20, 967,904.70 and 476,079.40

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Solution

The fourth proportional to 645,884.20, 967,904.70 and 476,079.40 is: 713,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,884.20 : 967,904.70 = 476,079.40 : x
  2. Step 2: Convert to fraction form
    645,884.20/967,904.70 = 476,079.40/x
  3. Step 3: Cross multiply
    645,884.20x = 967,904.70 × 476,079.40
  4. Step 4: Simplify right side
    645,884.20x = 460,799,488,833.18
  5. Step 5: Solve for x
    x = 460,799,488,833.18/645,884.20
  6. Step 6: Final answer
    x = 713,439.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.