Home / 551,215.20-826,822.80-457,903.20

Finding the Fourth Proportional to 551,215.20, 826,822.80 and 457,903.20

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Solution

The fourth proportional to 551,215.20, 826,822.80 and 457,903.20 is: 686,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,215.20 : 826,822.80 = 457,903.20 : x
  2. Step 2: Convert to fraction form
    551,215.20/826,822.80 = 457,903.20/x
  3. Step 3: Cross multiply
    551,215.20x = 826,822.80 × 457,903.20
  4. Step 4: Simplify right side
    551,215.20x = 378,604,805,952.96
  5. Step 5: Solve for x
    x = 378,604,805,952.96/551,215.20
  6. Step 6: Final answer
    x = 686,854.80

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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.