Home / 813,588.56-1,122,762.36-469,495.90

Finding the Fourth Proportional to 813,588.56, 1,122,762.36 and 469,495.90

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Solution

The fourth proportional to 813,588.56, 1,122,762.36 and 469,495.90 is: 647,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,588.56 : 1,122,762.36 = 469,495.90 : x
  2. Step 2: Convert to fraction form
    813,588.56/1,122,762.36 = 469,495.90/x
  3. Step 3: Cross multiply
    813,588.56x = 1,122,762.36 × 469,495.90
  4. Step 4: Simplify right side
    813,588.56x = 527,132,324,694.32
  5. Step 5: Solve for x
    x = 527,132,324,694.32/813,588.56
  6. Step 6: Final answer
    x = 647,910.20

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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.