Home / 284,001.20-426,001.80-84,352.40

Finding the Fourth Proportional to 284,001.20, 426,001.80 and 84,352.40

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Solution

The fourth proportional to 284,001.20, 426,001.80 and 84,352.40 is: 126,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,001.20 : 426,001.80 = 84,352.40 : x
  2. Step 2: Convert to fraction form
    284,001.20/426,001.80 = 84,352.40/x
  3. Step 3: Cross multiply
    284,001.20x = 426,001.80 × 84,352.40
  4. Step 4: Simplify right side
    284,001.20x = 35,934,274,234.32
  5. Step 5: Solve for x
    x = 35,934,274,234.32/284,001.20
  6. Step 6: Final answer
    x = 126,528.60

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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.