Home / 648,310.10-894,785.03-386,682.17

Finding the Fourth Proportional to 648,310.10, 894,785.03 and 386,682.17

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Solution

The fourth proportional to 648,310.10, 894,785.03 and 386,682.17 is: 533,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,310.10 : 894,785.03 = 386,682.17 : x
  2. Step 2: Convert to fraction form
    648,310.10/894,785.03 = 386,682.17/x
  3. Step 3: Cross multiply
    648,310.10x = 894,785.03 × 386,682.17
  4. Step 4: Simplify right side
    648,310.10x = 345,997,417,159.80
  5. Step 5: Solve for x
    x = 345,997,417,159.80/648,310.10
  6. Step 6: Final answer
    x = 533,691.24

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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.