Home / 291,024.02-436,536.21-80,663.78

Finding the Fourth Proportional to 291,024.02, 436,536.21 and 80,663.78

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Solution

The fourth proportional to 291,024.02, 436,536.21 and 80,663.78 is: 120,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,024.02 : 436,536.21 = 80,663.78 : x
  2. Step 2: Convert to fraction form
    291,024.02/436,536.21 = 80,663.78/x
  3. Step 3: Cross multiply
    291,024.02x = 436,536.21 × 80,663.78
  4. Step 4: Simplify right side
    291,024.02x = 35,212,660,805.47
  5. Step 5: Solve for x
    x = 35,212,660,805.47/291,024.02
  6. Step 6: Final answer
    x = 120,995.72

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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.