Home / 1,255,559.31-1,732,033.06-820,231.47

Finding the Fourth Proportional to 1,255,559.31, 1,732,033.06 and 820,231.47

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Solution

The fourth proportional to 1,255,559.31, 1,732,033.06 and 820,231.47 is: 1,131,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,559.31 : 1,732,033.06 = 820,231.47 : x
  2. Step 2: Convert to fraction form
    1,255,559.31/1,732,033.06 = 820,231.47/x
  3. Step 3: Cross multiply
    1,255,559.31x = 1,732,033.06 × 820,231.47
  4. Step 4: Simplify right side
    1,255,559.31x = 1,420,668,020,841.82
  5. Step 5: Solve for x
    x = 1,420,668,020,841.82/1,255,559.31
  6. Step 6: Final answer
    x = 1,131,502.12

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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.