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Finding the Fourth Proportional to 615,318.50, 849,182.18 and 343,439.37

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Solution

The fourth proportional to 615,318.50, 849,182.18 and 343,439.37 is: 473,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,318.50 : 849,182.18 = 343,439.37 : x
  2. Step 2: Convert to fraction form
    615,318.50/849,182.18 = 343,439.37/x
  3. Step 3: Cross multiply
    615,318.50x = 849,182.18 × 343,439.37
  4. Step 4: Simplify right side
    615,318.50x = 291,642,591,197.23
  5. Step 5: Solve for x
    x = 291,642,591,197.23/615,318.50
  6. Step 6: Final answer
    x = 473,970.14

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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.