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Finding the Fourth Proportional to 615,255.28, 849,019.72 and 346,966

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Solution

The fourth proportional to 615,255.28, 849,019.72 and 346,966 is: 478,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,255.28 : 849,019.72 = 346,966 : x
  2. Step 2: Convert to fraction form
    615,255.28/849,019.72 = 346,966/x
  3. Step 3: Cross multiply
    615,255.28x = 849,019.72 × 346,966
  4. Step 4: Simplify right side
    615,255.28x = 294,580,976,169.52
  5. Step 5: Solve for x
    x = 294,580,976,169.52/615,255.28
  6. Step 6: Final answer
    x = 478,794.71

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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.