Home / 1,471,645.45-2,031,039.12-818,336.71

Finding the Fourth Proportional to 1,471,645.45, 2,031,039.12 and 818,336.71

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Solution

The fourth proportional to 1,471,645.45, 2,031,039.12 and 818,336.71 is: 1,129,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471,645.45 : 2,031,039.12 = 818,336.71 : x
  2. Step 2: Convert to fraction form
    1,471,645.45/2,031,039.12 = 818,336.71/x
  3. Step 3: Cross multiply
    1,471,645.45x = 2,031,039.12 × 818,336.71
  4. Step 4: Simplify right side
    1,471,645.45x = 1,662,073,871,342.10
  5. Step 5: Solve for x
    x = 1,662,073,871,342.10/1,471,645.45
  6. Step 6: Final answer
    x = 1,129,398.30

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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.