Home / 421,811.20-632,532.48-126,254.08

Finding the Fourth Proportional to 421,811.20, 632,532.48 and 126,254.08

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Solution

The fourth proportional to 421,811.20, 632,532.48 and 126,254.08 is: 189,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,811.20 : 632,532.48 = 126,254.08 : x
  2. Step 2: Convert to fraction form
    421,811.20/632,532.48 = 126,254.08/x
  3. Step 3: Cross multiply
    421,811.20x = 632,532.48 × 126,254.08
  4. Step 4: Simplify right side
    421,811.20x = 79,859,806,332.52
  5. Step 5: Solve for x
    x = 79,859,806,332.52/421,811.20
  6. Step 6: Final answer
    x = 189,325.95

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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.