Home / 842,092.20-1,263,138.30-486,923.40

Finding the Fourth Proportional to 842,092.20, 1,263,138.30 and 486,923.40

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Solution

The fourth proportional to 842,092.20, 1,263,138.30 and 486,923.40 is: 730,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,092.20 : 1,263,138.30 = 486,923.40 : x
  2. Step 2: Convert to fraction form
    842,092.20/1,263,138.30 = 486,923.40/x
  3. Step 3: Cross multiply
    842,092.20x = 1,263,138.30 × 486,923.40
  4. Step 4: Simplify right side
    842,092.20x = 615,051,595,706.22
  5. Step 5: Solve for x
    x = 615,051,595,706.22/842,092.20
  6. Step 6: Final answer
    x = 730,385.10

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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.