Home / 1,775,475.90-2,663,213.85-780,147.90

Finding the Fourth Proportional to 1,775,475.90, 2,663,213.85 and 780,147.90

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Solution

The fourth proportional to 1,775,475.90, 2,663,213.85 and 780,147.90 is: 1,170,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,475.90 : 2,663,213.85 = 780,147.90 : x
  2. Step 2: Convert to fraction form
    1,775,475.90/2,663,213.85 = 780,147.90/x
  3. Step 3: Cross multiply
    1,775,475.90x = 2,663,213.85 × 780,147.90
  4. Step 4: Simplify right side
    1,775,475.90x = 2,077,700,692,328.42
  5. Step 5: Solve for x
    x = 2,077,700,692,328.42/1,775,475.90
  6. Step 6: Final answer
    x = 1,170,221.85

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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.