Home / 854,552.30-1,281,026.55-322,430.90

Finding the Fourth Proportional to 854,552.30, 1,281,026.55 and 322,430.90

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Solution

The fourth proportional to 854,552.30, 1,281,026.55 and 322,430.90 is: 483,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,552.30 : 1,281,026.55 = 322,430.90 : x
  2. Step 2: Convert to fraction form
    854,552.30/1,281,026.55 = 322,430.90/x
  3. Step 3: Cross multiply
    854,552.30x = 1,281,026.55 × 322,430.90
  4. Step 4: Simplify right side
    854,552.30x = 413,042,543,440.40
  5. Step 5: Solve for x
    x = 413,042,543,440.40/854,552.30
  6. Step 6: Final answer
    x = 483,343.79

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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.