Home / 1,931,655.28-2,665,144.14-1,207,238.86

Finding the Fourth Proportional to 1,931,655.28, 2,665,144.14 and 1,207,238.86

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Solution

The fourth proportional to 1,931,655.28, 2,665,144.14 and 1,207,238.86 is: 1,665,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,655.28 : 2,665,144.14 = 1,207,238.86 : x
  2. Step 2: Convert to fraction form
    1,931,655.28/2,665,144.14 = 1,207,238.86/x
  3. Step 3: Cross multiply
    1,931,655.28x = 2,665,144.14 × 1,207,238.86
  4. Step 4: Simplify right side
    1,931,655.28x = 3,217,465,573,309.28
  5. Step 5: Solve for x
    x = 3,217,465,573,309.28/1,931,655.28
  6. Step 6: Final answer
    x = 1,665,652.05

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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.