Home / 440,147.55-661,630.73-408,946.35

Finding the Fourth Proportional to 440,147.55, 661,630.73 and 408,946.35

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Solution

The fourth proportional to 440,147.55, 661,630.73 and 408,946.35 is: 614,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,147.55 : 661,630.73 = 408,946.35 : x
  2. Step 2: Convert to fraction form
    440,147.55/661,630.73 = 408,946.35/x
  3. Step 3: Cross multiply
    440,147.55x = 661,630.73 × 408,946.35
  4. Step 4: Simplify right side
    440,147.55x = 270,571,470,036.60
  5. Step 5: Solve for x
    x = 270,571,470,036.60/440,147.55
  6. Step 6: Final answer
    x = 614,729.02

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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.