Home / 412,937.10-619,405.65-307,961.10

Finding the Fourth Proportional to 412,937.10, 619,405.65 and 307,961.10

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Solution

The fourth proportional to 412,937.10, 619,405.65 and 307,961.10 is: 461,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,937.10 : 619,405.65 = 307,961.10 : x
  2. Step 2: Convert to fraction form
    412,937.10/619,405.65 = 307,961.10/x
  3. Step 3: Cross multiply
    412,937.10x = 619,405.65 × 307,961.10
  4. Step 4: Simplify right side
    412,937.10x = 190,752,845,320.22
  5. Step 5: Solve for x
    x = 190,752,845,320.22/412,937.10
  6. Step 6: Final answer
    x = 461,941.65

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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.