Home / 330,019.20-495,417.60-327,686.40

Finding the Fourth Proportional to 330,019.20, 495,417.60 and 327,686.40

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Solution

The fourth proportional to 330,019.20, 495,417.60 and 327,686.40 is: 491,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,019.20 : 495,417.60 = 327,686.40 : x
  2. Step 2: Convert to fraction form
    330,019.20/495,417.60 = 327,686.40/x
  3. Step 3: Cross multiply
    330,019.20x = 495,417.60 × 327,686.40
  4. Step 4: Simplify right side
    330,019.20x = 162,341,609,840.64
  5. Step 5: Solve for x
    x = 162,341,609,840.64/330,019.20
  6. Step 6: Final answer
    x = 491,915.65

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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.