Home / 1,207,391.42-1,666,119.62-663,515.52

Finding the Fourth Proportional to 1,207,391.42, 1,666,119.62 and 663,515.52

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Solution

The fourth proportional to 1,207,391.42, 1,666,119.62 and 663,515.52 is: 915,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,391.42 : 1,666,119.62 = 663,515.52 : x
  2. Step 2: Convert to fraction form
    1,207,391.42/1,666,119.62 = 663,515.52/x
  3. Step 3: Cross multiply
    1,207,391.42x = 1,666,119.62 × 663,515.52
  4. Step 4: Simplify right side
    1,207,391.42x = 1,105,496,226,046.50
  5. Step 5: Solve for x
    x = 1,105,496,226,046.50/1,207,391.42
  6. Step 6: Final answer
    x = 915,607.16

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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.