Home / 1,273,034.52-1,756,290.42-728,879.49

Finding the Fourth Proportional to 1,273,034.52, 1,756,290.42 and 728,879.49

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Solution

The fourth proportional to 1,273,034.52, 1,756,290.42 and 728,879.49 is: 1,005,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,034.52 : 1,756,290.42 = 728,879.49 : x
  2. Step 2: Convert to fraction form
    1,273,034.52/1,756,290.42 = 728,879.49/x
  3. Step 3: Cross multiply
    1,273,034.52x = 1,756,290.42 × 728,879.49
  4. Step 4: Simplify right side
    1,273,034.52x = 1,280,124,065,621.49
  5. Step 5: Solve for x
    x = 1,280,124,065,621.49/1,273,034.52
  6. Step 6: Final answer
    x = 1,005,569.01

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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.