Home / 1,378,367.15-2,066,200.85-771,451.83

Finding the Fourth Proportional to 1,378,367.15, 2,066,200.85 and 771,451.83

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Solution

The fourth proportional to 1,378,367.15, 2,066,200.85 and 771,451.83 is: 1,156,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,367.15 : 2,066,200.85 = 771,451.83 : x
  2. Step 2: Convert to fraction form
    1,378,367.15/2,066,200.85 = 771,451.83/x
  3. Step 3: Cross multiply
    1,378,367.15x = 2,066,200.85 × 771,451.83
  4. Step 4: Simplify right side
    1,378,367.15x = 1,593,974,428,808.69
  5. Step 5: Solve for x
    x = 1,593,974,428,808.69/1,378,367.15
  6. Step 6: Final answer
    x = 1,156,422.25

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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.