Home / 1,280,034.64-1,920,125.69-481,323.10

Finding the Fourth Proportional to 1,280,034.64, 1,920,125.69 and 481,323.10

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Solution

The fourth proportional to 1,280,034.64, 1,920,125.69 and 481,323.10 is: 722,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,034.64 : 1,920,125.69 = 481,323.10 : x
  2. Step 2: Convert to fraction form
    1,280,034.64/1,920,125.69 = 481,323.10/x
  3. Step 3: Cross multiply
    1,280,034.64x = 1,920,125.69 × 481,323.10
  4. Step 4: Simplify right side
    1,280,034.64x = 924,200,856,134.01
  5. Step 5: Solve for x
    x = 924,200,856,134.01/1,280,034.64
  6. Step 6: Final answer
    x = 722,012.38

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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.