Home / 724,271.22-999,474.78-397,584.45

Finding the Fourth Proportional to 724,271.22, 999,474.78 and 397,584.45

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Solution

The fourth proportional to 724,271.22, 999,474.78 and 397,584.45 is: 548,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,271.22 : 999,474.78 = 397,584.45 : x
  2. Step 2: Convert to fraction form
    724,271.22/999,474.78 = 397,584.45/x
  3. Step 3: Cross multiply
    724,271.22x = 999,474.78 × 397,584.45
  4. Step 4: Simplify right side
    724,271.22x = 397,375,630,695.17
  5. Step 5: Solve for x
    x = 397,375,630,695.17/724,271.22
  6. Step 6: Final answer
    x = 548,655.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.