Home / 877,188.26-1,315,829.38-278,194.88

Finding the Fourth Proportional to 877,188.26, 1,315,829.38 and 278,194.88

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Solution

The fourth proportional to 877,188.26, 1,315,829.38 and 278,194.88 is: 417,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,188.26 : 1,315,829.38 = 278,194.88 : x
  2. Step 2: Convert to fraction form
    877,188.26/1,315,829.38 = 278,194.88/x
  3. Step 3: Cross multiply
    877,188.26x = 1,315,829.38 × 278,194.88
  4. Step 4: Simplify right side
    877,188.26x = 366,056,996,469.57
  5. Step 5: Solve for x
    x = 366,056,996,469.57/877,188.26
  6. Step 6: Final answer
    x = 417,307.22

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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.