Home / 1,378,082.55-2,067,399.75-771,733.16

Finding the Fourth Proportional to 1,378,082.55, 2,067,399.75 and 771,733.16

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Solution

The fourth proportional to 1,378,082.55, 2,067,399.75 and 771,733.16 is: 1,157,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,082.55 : 2,067,399.75 = 771,733.16 : x
  2. Step 2: Convert to fraction form
    1,378,082.55/2,067,399.75 = 771,733.16/x
  3. Step 3: Cross multiply
    1,378,082.55x = 2,067,399.75 × 771,733.16
  4. Step 4: Simplify right side
    1,378,082.55x = 1,595,480,931,713.71
  5. Step 5: Solve for x
    x = 1,595,480,931,713.71/1,378,082.55
  6. Step 6: Final answer
    x = 1,157,754.25

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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.