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Finding the Fourth Proportional to 615,826.50, 849,791.59 and 343,878.16

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Solution

The fourth proportional to 615,826.50, 849,791.59 and 343,878.16 is: 474,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,826.50 : 849,791.59 = 343,878.16 : x
  2. Step 2: Convert to fraction form
    615,826.50/849,791.59 = 343,878.16/x
  3. Step 3: Cross multiply
    615,826.50x = 849,791.59 × 343,878.16
  4. Step 4: Simplify right side
    615,826.50x = 292,224,766,961.86
  5. Step 5: Solve for x
    x = 292,224,766,961.86/615,826.50
  6. Step 6: Final answer
    x = 474,524.51

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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.