Home / 810,137.60-1,215,206.40-741,903.20

Finding the Fourth Proportional to 810,137.60, 1,215,206.40 and 741,903.20

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Solution

The fourth proportional to 810,137.60, 1,215,206.40 and 741,903.20 is: 1,112,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,137.60 : 1,215,206.40 = 741,903.20 : x
  2. Step 2: Convert to fraction form
    810,137.60/1,215,206.40 = 741,903.20/x
  3. Step 3: Cross multiply
    810,137.60x = 1,215,206.40 × 741,903.20
  4. Step 4: Simplify right side
    810,137.60x = 901,565,516,820.48
  5. Step 5: Solve for x
    x = 901,565,516,820.48/810,137.60
  6. Step 6: Final answer
    x = 1,112,854.80

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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.