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Finding the Fourth Proportional to 615,350.85, 849,182.36 and 343,415.85

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Solution

The fourth proportional to 615,350.85, 849,182.36 and 343,415.85 is: 473,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,350.85 : 849,182.36 = 343,415.85 : x
  2. Step 2: Convert to fraction form
    615,350.85/849,182.36 = 343,415.85/x
  3. Step 3: Cross multiply
    615,350.85x = 849,182.36 × 343,415.85
  4. Step 4: Simplify right side
    615,350.85x = 291,622,680,247.33
  5. Step 5: Solve for x
    x = 291,622,680,247.33/615,350.85
  6. Step 6: Final answer
    x = 473,912.86

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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.