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Finding the Fourth Proportional to 615,348.50, 849,223.58 and 343,469.43

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Solution

The fourth proportional to 615,348.50, 849,223.58 and 343,469.43 is: 474,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,348.50 : 849,223.58 = 343,469.43 : x
  2. Step 2: Convert to fraction form
    615,348.50/849,223.58 = 343,469.43/x
  3. Step 3: Cross multiply
    615,348.50x = 849,223.58 × 343,469.43
  4. Step 4: Simplify right side
    615,348.50x = 291,682,337,247.81
  5. Step 5: Solve for x
    x = 291,682,337,247.81/615,348.50
  6. Step 6: Final answer
    x = 474,011.62

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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.