Home / 1,317,279-1,817,821.22-744,306.87

Finding the Fourth Proportional to 1,317,279, 1,817,821.22 and 744,306.87

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Solution

The fourth proportional to 1,317,279, 1,817,821.22 and 744,306.87 is: 1,027,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,279 : 1,817,821.22 = 744,306.87 : x
  2. Step 2: Convert to fraction form
    1,317,279/1,817,821.22 = 744,306.87/x
  3. Step 3: Cross multiply
    1,317,279x = 1,817,821.22 × 744,306.87
  4. Step 4: Simplify right side
    1,317,279x = 1,353,016,818,756.25
  5. Step 5: Solve for x
    x = 1,353,016,818,756.25/1,317,279
  6. Step 6: Final answer
    x = 1,027,130.03

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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.