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Finding the Fourth Proportional to 615,704.27, 849,663.80 and 343,776.78

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Solution

The fourth proportional to 615,704.27, 849,663.80 and 343,776.78 is: 474,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,704.27 : 849,663.80 = 343,776.78 : x
  2. Step 2: Convert to fraction form
    615,704.27/849,663.80 = 343,776.78/x
  3. Step 3: Cross multiply
    615,704.27x = 849,663.80 × 343,776.78
  4. Step 4: Simplify right side
    615,704.27x = 292,094,686,106.01
  5. Step 5: Solve for x
    x = 292,094,686,106.01/615,704.27
  6. Step 6: Final answer
    x = 474,407.44

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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.