Home / 456,011.20-684,016.80-123,587.20

Finding the Fourth Proportional to 456,011.20, 684,016.80 and 123,587.20

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Solution

The fourth proportional to 456,011.20, 684,016.80 and 123,587.20 is: 185,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,011.20 : 684,016.80 = 123,587.20 : x
  2. Step 2: Convert to fraction form
    456,011.20/684,016.80 = 123,587.20/x
  3. Step 3: Cross multiply
    456,011.20x = 684,016.80 × 123,587.20
  4. Step 4: Simplify right side
    456,011.20x = 84,535,721,064.96
  5. Step 5: Solve for x
    x = 84,535,721,064.96/456,011.20
  6. Step 6: Final answer
    x = 185,380.80

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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.