Home / 1,543,446.42-2,315,257.12-478,639.86

Finding the Fourth Proportional to 1,543,446.42, 2,315,257.12 and 478,639.86

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Solution

The fourth proportional to 1,543,446.42, 2,315,257.12 and 478,639.86 is: 717,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,446.42 : 2,315,257.12 = 478,639.86 : x
  2. Step 2: Convert to fraction form
    1,543,446.42/2,315,257.12 = 478,639.86/x
  3. Step 3: Cross multiply
    1,543,446.42x = 2,315,257.12 × 478,639.86
  4. Step 4: Simplify right side
    1,543,446.42x = 1,108,174,343,780.80
  5. Step 5: Solve for x
    x = 1,108,174,343,780.80/1,543,446.42
  6. Step 6: Final answer
    x = 717,986.92

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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.