Home / 566,495.40-781,587.57-321,439.62

Finding the Fourth Proportional to 566,495.40, 781,587.57 and 321,439.62

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Solution

The fourth proportional to 566,495.40, 781,587.57 and 321,439.62 is: 443,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,495.40 : 781,587.57 = 321,439.62 : x
  2. Step 2: Convert to fraction form
    566,495.40/781,587.57 = 321,439.62/x
  3. Step 3: Cross multiply
    566,495.40x = 781,587.57 × 321,439.62
  4. Step 4: Simplify right side
    566,495.40x = 251,233,215,633.88
  5. Step 5: Solve for x
    x = 251,233,215,633.88/566,495.40
  6. Step 6: Final answer
    x = 443,486.77

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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.