Home / 284,007.20-426,010.80-84,358.40

Finding the Fourth Proportional to 284,007.20, 426,010.80 and 84,358.40

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Solution

The fourth proportional to 284,007.20, 426,010.80 and 84,358.40 is: 126,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,007.20 : 426,010.80 = 84,358.40 : x
  2. Step 2: Convert to fraction form
    284,007.20/426,010.80 = 84,358.40/x
  3. Step 3: Cross multiply
    284,007.20x = 426,010.80 × 84,358.40
  4. Step 4: Simplify right side
    284,007.20x = 35,937,589,470.72
  5. Step 5: Solve for x
    x = 35,937,589,470.72/284,007.20
  6. Step 6: Final answer
    x = 126,537.60

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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.