Home / 842,114.20-1,263,182.10-281,148.70

Finding the Fourth Proportional to 842,114.20, 1,263,182.10 and 281,148.70

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Solution

The fourth proportional to 842,114.20, 1,263,182.10 and 281,148.70 is: 421,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,114.20 : 1,263,182.10 = 281,148.70 : x
  2. Step 2: Convert to fraction form
    842,114.20/1,263,182.10 = 281,148.70/x
  3. Step 3: Cross multiply
    842,114.20x = 1,263,182.10 × 281,148.70
  4. Step 4: Simplify right side
    842,114.20x = 355,142,005,278.27
  5. Step 5: Solve for x
    x = 355,142,005,278.27/842,114.20
  6. Step 6: Final answer
    x = 421,726.66

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1.5x scale

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.