Home / 1,207,491.21-1,666,375.38-663,617.13

Finding the Fourth Proportional to 1,207,491.21, 1,666,375.38 and 663,617.13

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Solution

The fourth proportional to 1,207,491.21, 1,666,375.38 and 663,617.13 is: 915,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,491.21 : 1,666,375.38 = 663,617.13 : x
  2. Step 2: Convert to fraction form
    1,207,491.21/1,666,375.38 = 663,617.13/x
  3. Step 3: Cross multiply
    1,207,491.21x = 1,666,375.38 × 663,617.13
  4. Step 4: Simplify right side
    1,207,491.21x = 1,105,835,247,178.26
  5. Step 5: Solve for x
    x = 1,105,835,247,178.26/1,207,491.21
  6. Step 6: Final answer
    x = 915,812.25

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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.