Home / 1,123,670.80-1,685,724.90-324,978.40

Finding the Fourth Proportional to 1,123,670.80, 1,685,724.90 and 324,978.40

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Solution

The fourth proportional to 1,123,670.80, 1,685,724.90 and 324,978.40 is: 487,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,670.80 : 1,685,724.90 = 324,978.40 : x
  2. Step 2: Convert to fraction form
    1,123,670.80/1,685,724.90 = 324,978.40/x
  3. Step 3: Cross multiply
    1,123,670.80x = 1,685,724.90 × 324,978.40
  4. Step 4: Simplify right side
    1,123,670.80x = 547,824,180,842.16
  5. Step 5: Solve for x
    x = 547,824,180,842.16/1,123,670.80
  6. Step 6: Final answer
    x = 487,530.85

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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.