Home / 578,896.20-868,344.30-508,912.20

Finding the Fourth Proportional to 578,896.20, 868,344.30 and 508,912.20

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Solution

The fourth proportional to 578,896.20, 868,344.30 and 508,912.20 is: 763,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,896.20 : 868,344.30 = 508,912.20 : x
  2. Step 2: Convert to fraction form
    578,896.20/868,344.30 = 508,912.20/x
  3. Step 3: Cross multiply
    578,896.20x = 868,344.30 × 508,912.20
  4. Step 4: Simplify right side
    578,896.20x = 441,911,008,070.46
  5. Step 5: Solve for x
    x = 441,911,008,070.46/578,896.20
  6. Step 6: Final answer
    x = 763,368.30

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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.