Home / 842,117.70-1,263,176.55-486,948.90

Finding the Fourth Proportional to 842,117.70, 1,263,176.55 and 486,948.90

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Solution

The fourth proportional to 842,117.70, 1,263,176.55 and 486,948.90 is: 730,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,117.70 : 1,263,176.55 = 486,948.90 : x
  2. Step 2: Convert to fraction form
    842,117.70/1,263,176.55 = 486,948.90/x
  3. Step 3: Cross multiply
    842,117.70x = 1,263,176.55 × 486,948.90
  4. Step 4: Simplify right side
    842,117.70x = 615,102,431,528.30
  5. Step 5: Solve for x
    x = 615,102,431,528.30/842,117.70
  6. Step 6: Final answer
    x = 730,423.35

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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.