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Finding the Fourth Proportional to 615,280.98, 849,086.16 and 343,346.00

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Solution

The fourth proportional to 615,280.98, 849,086.16 and 343,346.00 is: 473,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,280.98 : 849,086.16 = 343,346.00 : x
  2. Step 2: Convert to fraction form
    615,280.98/849,086.16 = 343,346.00/x
  3. Step 3: Cross multiply
    615,280.98x = 849,086.16 × 343,346.00
  4. Step 4: Simplify right side
    615,280.98x = 291,530,332,445.93
  5. Step 5: Solve for x
    x = 291,530,332,445.93/615,280.98
  6. Step 6: Final answer
    x = 473,816.58

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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.