Home / 678,360.83-1,017,773.51-425,335.86

Finding the Fourth Proportional to 678,360.83, 1,017,773.51 and 425,335.86

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Solution

The fourth proportional to 678,360.83, 1,017,773.51 and 425,335.86 is: 638,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,360.83 : 1,017,773.51 = 425,335.86 : x
  2. Step 2: Convert to fraction form
    678,360.83/1,017,773.51 = 425,335.86/x
  3. Step 3: Cross multiply
    678,360.83x = 1,017,773.51 × 425,335.86
  4. Step 4: Simplify right side
    678,360.83x = 432,895,569,034.39
  5. Step 5: Solve for x
    x = 432,895,569,034.39/678,360.83
  6. Step 6: Final answer
    x = 638,149.42

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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.