Home / 1,427,270.69-1,969,636.13-782,695.50

Finding the Fourth Proportional to 1,427,270.69, 1,969,636.13 and 782,695.50

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Solution

The fourth proportional to 1,427,270.69, 1,969,636.13 and 782,695.50 is: 1,080,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,270.69 : 1,969,636.13 = 782,695.50 : x
  2. Step 2: Convert to fraction form
    1,427,270.69/1,969,636.13 = 782,695.50/x
  3. Step 3: Cross multiply
    1,427,270.69x = 1,969,636.13 × 782,695.50
  4. Step 4: Simplify right side
    1,427,270.69x = 1,541,625,335,588.41
  5. Step 5: Solve for x
    x = 1,541,625,335,588.41/1,427,270.69
  6. Step 6: Final answer
    x = 1,080,121.20

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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.