Home / 851,139.48-1,172,981.34-635,899.80

Finding the Fourth Proportional to 851,139.48, 1,172,981.34 and 635,899.80

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Solution

The fourth proportional to 851,139.48, 1,172,981.34 and 635,899.80 is: 876,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,139.48 : 1,172,981.34 = 635,899.80 : x
  2. Step 2: Convert to fraction form
    851,139.48/1,172,981.34 = 635,899.80/x
  3. Step 3: Cross multiply
    851,139.48x = 1,172,981.34 × 635,899.80
  4. Step 4: Simplify right side
    851,139.48x = 745,898,599,509.73
  5. Step 5: Solve for x
    x = 745,898,599,509.73/851,139.48
  6. Step 6: Final answer
    x = 876,352.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.