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Finding the Fourth Proportional to 615,222.68, 849,006.15 and 343,274.18

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Solution

The fourth proportional to 615,222.68, 849,006.15 and 343,274.18 is: 473,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,222.68 : 849,006.15 = 343,274.18 : x
  2. Step 2: Convert to fraction form
    615,222.68/849,006.15 = 343,274.18/x
  3. Step 3: Cross multiply
    615,222.68x = 849,006.15 × 343,274.18
  4. Step 4: Simplify right side
    615,222.68x = 291,441,889,956.21
  5. Step 5: Solve for x
    x = 291,441,889,956.21/615,222.68
  6. Step 6: Final answer
    x = 473,717.73

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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.