Home / 854,390.61-1,281,780.32-454,820.85

Finding the Fourth Proportional to 854,390.61, 1,281,780.32 and 454,820.85

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Solution

The fourth proportional to 854,390.61, 1,281,780.32 and 454,820.85 is: 682,334.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,390.61 : 1,281,780.32 = 454,820.85 : x
  2. Step 2: Convert to fraction form
    854,390.61/1,281,780.32 = 454,820.85/x
  3. Step 3: Cross multiply
    854,390.61x = 1,281,780.32 × 454,820.85
  4. Step 4: Simplify right side
    854,390.61x = 582,980,412,381.57
  5. Step 5: Solve for x
    x = 582,980,412,381.57/854,390.61
  6. Step 6: Final answer
    x = 682,334.76

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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.