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Finding the Fourth Proportional to 615,701.45, 849,659.94 and 343,773.96

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Solution

The fourth proportional to 615,701.45, 849,659.94 and 343,773.96 is: 474,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,701.45 : 849,659.94 = 343,773.96 : x
  2. Step 2: Convert to fraction form
    615,701.45/849,659.94 = 343,773.96/x
  3. Step 3: Cross multiply
    615,701.45x = 849,659.94 × 343,773.96
  4. Step 4: Simplify right side
    615,701.45x = 292,090,962,227.16
  5. Step 5: Solve for x
    x = 292,090,962,227.16/615,701.45
  6. Step 6: Final answer
    x = 474,403.57

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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.