Home / 859,937.32-1,289,901.92-220,239.84

Finding the Fourth Proportional to 859,937.32, 1,289,901.92 and 220,239.84

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Solution

The fourth proportional to 859,937.32, 1,289,901.92 and 220,239.84 is: 330,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,937.32 : 1,289,901.92 = 220,239.84 : x
  2. Step 2: Convert to fraction form
    859,937.32/1,289,901.92 = 220,239.84/x
  3. Step 3: Cross multiply
    859,937.32x = 1,289,901.92 × 220,239.84
  4. Step 4: Simplify right side
    859,937.32x = 284,087,792,476.49
  5. Step 5: Solve for x
    x = 284,087,792,476.49/859,937.32
  6. Step 6: Final answer
    x = 330,358.72

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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.