Home / 1,112,447.60-1,669,108.80-438,414.20

Finding the Fourth Proportional to 1,112,447.60, 1,669,108.80 and 438,414.20

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Solution

The fourth proportional to 1,112,447.60, 1,669,108.80 and 438,414.20 is: 657,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,447.60 : 1,669,108.80 = 438,414.20 : x
  2. Step 2: Convert to fraction form
    1,112,447.60/1,669,108.80 = 438,414.20/x
  3. Step 3: Cross multiply
    1,112,447.60x = 1,669,108.80 × 438,414.20
  4. Step 4: Simplify right side
    1,112,447.60x = 731,760,999,264.96
  5. Step 5: Solve for x
    x = 731,760,999,264.96/1,112,447.60
  6. Step 6: Final answer
    x = 657,793.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.