Home / 1,205,132.16-1,663,081.20-661,271.04

Finding the Fourth Proportional to 1,205,132.16, 1,663,081.20 and 661,271.04

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Solution

The fourth proportional to 1,205,132.16, 1,663,081.20 and 661,271.04 is: 912,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,132.16 : 1,663,081.20 = 661,271.04 : x
  2. Step 2: Convert to fraction form
    1,205,132.16/1,663,081.20 = 661,271.04/x
  3. Step 3: Cross multiply
    1,205,132.16x = 1,663,081.20 × 661,271.04
  4. Step 4: Simplify right side
    1,205,132.16x = 1,099,747,434,728.45
  5. Step 5: Solve for x
    x = 1,099,747,434,728.45/1,205,132.16
  6. Step 6: Final answer
    x = 912,553.39

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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.