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Finding the Fourth Proportional to 615,958.43, 849,967.32 and 343,988.58

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Solution

The fourth proportional to 615,958.43, 849,967.32 and 343,988.58 is: 474,673.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,958.43 : 849,967.32 = 343,988.58 : x
  2. Step 2: Convert to fraction form
    615,958.43/849,967.32 = 343,988.58/x
  3. Step 3: Cross multiply
    615,958.43x = 849,967.32 × 343,988.58
  4. Step 4: Simplify right side
    615,958.43x = 292,379,051,453.21
  5. Step 5: Solve for x
    x = 292,379,051,453.21/615,958.43
  6. Step 6: Final answer
    x = 474,673.35

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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.