Home / 534,772.20-802,158.30-345,815.40

Finding the Fourth Proportional to 534,772.20, 802,158.30 and 345,815.40

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Solution

The fourth proportional to 534,772.20, 802,158.30 and 345,815.40 is: 518,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,772.20 : 802,158.30 = 345,815.40 : x
  2. Step 2: Convert to fraction form
    534,772.20/802,158.30 = 345,815.40/x
  3. Step 3: Cross multiply
    534,772.20x = 802,158.30 × 345,815.40
  4. Step 4: Simplify right side
    534,772.20x = 277,398,693,377.82
  5. Step 5: Solve for x
    x = 277,398,693,377.82/534,772.20
  6. Step 6: Final answer
    x = 518,723.10

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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.