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Finding the Fourth Proportional to 615,736.71, 849,707.84 and 343,808.89

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Solution

The fourth proportional to 615,736.71, 849,707.84 and 343,808.89 is: 474,451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,736.71 : 849,707.84 = 343,808.89 : x
  2. Step 2: Convert to fraction form
    615,736.71/849,707.84 = 343,808.89/x
  3. Step 3: Cross multiply
    615,736.71x = 849,707.84 × 343,808.89
  4. Step 4: Simplify right side
    615,736.71x = 292,137,108,029.95
  5. Step 5: Solve for x
    x = 292,137,108,029.95/615,736.71
  6. Step 6: Final answer
    x = 474,451.34

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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.