Home / 1,434,672.60-1,979,121.78-891,130.20

Finding the Fourth Proportional to 1,434,672.60, 1,979,121.78 and 891,130.20

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Solution

The fourth proportional to 1,434,672.60, 1,979,121.78 and 891,130.20 is: 1,229,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,672.60 : 1,979,121.78 = 891,130.20 : x
  2. Step 2: Convert to fraction form
    1,434,672.60/1,979,121.78 = 891,130.20/x
  3. Step 3: Cross multiply
    1,434,672.60x = 1,979,121.78 × 891,130.20
  4. Step 4: Simplify right side
    1,434,672.60x = 1,763,655,187,635.76
  5. Step 5: Solve for x
    x = 1,763,655,187,635.76/1,434,672.60
  6. Step 6: Final answer
    x = 1,229,308.48

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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.