Home / 819,139.20-1,228,708.80-464,845.20

Finding the Fourth Proportional to 819,139.20, 1,228,708.80 and 464,845.20

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Solution

The fourth proportional to 819,139.20, 1,228,708.80 and 464,845.20 is: 697,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,139.20 : 1,228,708.80 = 464,845.20 : x
  2. Step 2: Convert to fraction form
    819,139.20/1,228,708.80 = 464,845.20/x
  3. Step 3: Cross multiply
    819,139.20x = 1,228,708.80 × 464,845.20
  4. Step 4: Simplify right side
    819,139.20x = 571,159,387,877.76
  5. Step 5: Solve for x
    x = 571,159,387,877.76/819,139.20
  6. Step 6: Final answer
    x = 697,267.80

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Similar ratio
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1.5x scale

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.