Home / 1,200,326.69-1,798,649.39-815,585.55

Finding the Fourth Proportional to 1,200,326.69, 1,798,649.39 and 815,585.55

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Solution

The fourth proportional to 1,200,326.69, 1,798,649.39 and 815,585.55 is: 1,222,127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,326.69 : 1,798,649.39 = 815,585.55 : x
  2. Step 2: Convert to fraction form
    1,200,326.69/1,798,649.39 = 815,585.55/x
  3. Step 3: Cross multiply
    1,200,326.69x = 1,798,649.39 × 815,585.55
  4. Step 4: Simplify right side
    1,200,326.69x = 1,466,952,452,000.31
  5. Step 5: Solve for x
    x = 1,466,952,452,000.31/1,200,326.69
  6. Step 6: Final answer
    x = 1,222,127.66

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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.