Home / 486,305.10-729,457.65-272,853.90

Finding the Fourth Proportional to 486,305.10, 729,457.65 and 272,853.90

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Solution

The fourth proportional to 486,305.10, 729,457.65 and 272,853.90 is: 409,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,305.10 : 729,457.65 = 272,853.90 : x
  2. Step 2: Convert to fraction form
    486,305.10/729,457.65 = 272,853.90/x
  3. Step 3: Cross multiply
    486,305.10x = 729,457.65 × 272,853.90
  4. Step 4: Simplify right side
    486,305.10x = 199,035,364,687.34
  5. Step 5: Solve for x
    x = 199,035,364,687.34/486,305.10
  6. Step 6: Final answer
    x = 409,280.85

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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.