Home / 440,491.20-660,680.44-140,946.72

Finding the Fourth Proportional to 440,491.20, 660,680.44 and 140,946.72

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Solution

The fourth proportional to 440,491.20, 660,680.44 and 140,946.72 is: 211,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,491.20 : 660,680.44 = 140,946.72 : x
  2. Step 2: Convert to fraction form
    440,491.20/660,680.44 = 140,946.72/x
  3. Step 3: Cross multiply
    440,491.20x = 660,680.44 × 140,946.72
  4. Step 4: Simplify right side
    440,491.20x = 93,120,740,986.16
  5. Step 5: Solve for x
    x = 93,120,740,986.16/440,491.20
  6. Step 6: Final answer
    x = 211,402.05

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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.