Home / 814,983.40-1,221,989.10-499,666.60

Finding the Fourth Proportional to 814,983.40, 1,221,989.10 and 499,666.60

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Solution

The fourth proportional to 814,983.40, 1,221,989.10 and 499,666.60 is: 749,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,983.40 : 1,221,989.10 = 499,666.60 : x
  2. Step 2: Convert to fraction form
    814,983.40/1,221,989.10 = 499,666.60/x
  3. Step 3: Cross multiply
    814,983.40x = 1,221,989.10 × 499,666.60
  4. Step 4: Simplify right side
    814,983.40x = 610,587,138,834.06
  5. Step 5: Solve for x
    x = 610,587,138,834.06/814,983.40
  6. Step 6: Final answer
    x = 749,201.93

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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.