Home / 1,272,447.57-1,756,020.40-749,063.74

Finding the Fourth Proportional to 1,272,447.57, 1,756,020.40 and 749,063.74

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Solution

The fourth proportional to 1,272,447.57, 1,756,020.40 and 749,063.74 is: 1,033,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,447.57 : 1,756,020.40 = 749,063.74 : x
  2. Step 2: Convert to fraction form
    1,272,447.57/1,756,020.40 = 749,063.74/x
  3. Step 3: Cross multiply
    1,272,447.57x = 1,756,020.40 × 749,063.74
  4. Step 4: Simplify right side
    1,272,447.57x = 1,315,371,208,340.30
  5. Step 5: Solve for x
    x = 1,315,371,208,340.30/1,272,447.57
  6. Step 6: Final answer
    x = 1,033,733.13

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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.