Home / 847,789.59-1,271,684.83-315,241.42

Finding the Fourth Proportional to 847,789.59, 1,271,684.83 and 315,241.42

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Solution

The fourth proportional to 847,789.59, 1,271,684.83 and 315,241.42 is: 472,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,789.59 : 1,271,684.83 = 315,241.42 : x
  2. Step 2: Convert to fraction form
    847,789.59/1,271,684.83 = 315,241.42/x
  3. Step 3: Cross multiply
    847,789.59x = 1,271,684.83 × 315,241.42
  4. Step 4: Simplify right side
    847,789.59x = 400,887,726,031.34
  5. Step 5: Solve for x
    x = 400,887,726,031.34/847,789.59
  6. Step 6: Final answer
    x = 472,862.29

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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.