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Finding the Fourth Proportional to 638,273.52, 880,754.38 and 380,099.12

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Solution

The fourth proportional to 638,273.52, 880,754.38 and 380,099.12 is: 524,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,273.52 : 880,754.38 = 380,099.12 : x
  2. Step 2: Convert to fraction form
    638,273.52/880,754.38 = 380,099.12/x
  3. Step 3: Cross multiply
    638,273.52x = 880,754.38 × 380,099.12
  4. Step 4: Simplify right side
    638,273.52x = 334,773,959,420.13
  5. Step 5: Solve for x
    x = 334,773,959,420.13/638,273.52
  6. Step 6: Final answer
    x = 524,499.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.