Home / 1,207,242.55-1,665,895.03-663,350.23

Finding the Fourth Proportional to 1,207,242.55, 1,665,895.03 and 663,350.23

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Solution

The fourth proportional to 1,207,242.55, 1,665,895.03 and 663,350.23 is: 915,368.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,242.55 : 1,665,895.03 = 663,350.23 : x
  2. Step 2: Convert to fraction form
    1,207,242.55/1,665,895.03 = 663,350.23/x
  3. Step 3: Cross multiply
    1,207,242.55x = 1,665,895.03 × 663,350.23
  4. Step 4: Simplify right side
    1,207,242.55x = 1,105,071,851,306.36
  5. Step 5: Solve for x
    x = 1,105,071,851,306.36/1,207,242.55
  6. Step 6: Final answer
    x = 915,368.54

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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.