Home / 665,764.13-999,356.96-286,871.85

Finding the Fourth Proportional to 665,764.13, 999,356.96 and 286,871.85

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Solution

The fourth proportional to 665,764.13, 999,356.96 and 286,871.85 is: 430,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,764.13 : 999,356.96 = 286,871.85 : x
  2. Step 2: Convert to fraction form
    665,764.13/999,356.96 = 286,871.85/x
  3. Step 3: Cross multiply
    665,764.13x = 999,356.96 × 286,871.85
  4. Step 4: Simplify right side
    665,764.13x = 286,687,380,642.76
  5. Step 5: Solve for x
    x = 286,687,380,642.76/665,764.13
  6. Step 6: Final answer
    x = 430,614.04

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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.