Home / 284,276.76-426,340.80-84,543.36

Finding the Fourth Proportional to 284,276.76, 426,340.80 and 84,543.36

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Solution

The fourth proportional to 284,276.76, 426,340.80 and 84,543.36 is: 126,792.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,276.76 : 426,340.80 = 84,543.36 : x
  2. Step 2: Convert to fraction form
    284,276.76/426,340.80 = 84,543.36/x
  3. Step 3: Cross multiply
    284,276.76x = 426,340.80 × 84,543.36
  4. Step 4: Simplify right side
    284,276.76x = 36,044,283,737.09
  5. Step 5: Solve for x
    x = 36,044,283,737.09/284,276.76
  6. Step 6: Final answer
    x = 126,792.93

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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.