Home / 456,008.20-684,012.30-123,584.20

Finding the Fourth Proportional to 456,008.20, 684,012.30 and 123,584.20

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Solution

The fourth proportional to 456,008.20, 684,012.30 and 123,584.20 is: 185,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,008.20 : 684,012.30 = 123,584.20 : x
  2. Step 2: Convert to fraction form
    456,008.20/684,012.30 = 123,584.20/x
  3. Step 3: Cross multiply
    456,008.20x = 684,012.30 × 123,584.20
  4. Step 4: Simplify right side
    456,008.20x = 84,533,112,885.66
  5. Step 5: Solve for x
    x = 84,533,112,885.66/456,008.20
  6. Step 6: Final answer
    x = 185,376.30

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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.