Home / 932,138.60-1,397,286.30-370,423.40

Finding the Fourth Proportional to 932,138.60, 1,397,286.30 and 370,423.40

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Solution

The fourth proportional to 932,138.60, 1,397,286.30 and 370,423.40 is: 555,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,138.60 : 1,397,286.30 = 370,423.40 : x
  2. Step 2: Convert to fraction form
    932,138.60/1,397,286.30 = 370,423.40/x
  3. Step 3: Cross multiply
    932,138.60x = 1,397,286.30 × 370,423.40
  4. Step 4: Simplify right side
    932,138.60x = 517,587,542,019.42
  5. Step 5: Solve for x
    x = 517,587,542,019.42/932,138.60
  6. Step 6: Final answer
    x = 555,268.86

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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.