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Finding the Fourth Proportional to 615,253.28, 849,016.96 and 346,964

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Solution

The fourth proportional to 615,253.28, 849,016.96 and 346,964 is: 478,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,253.28 : 849,016.96 = 346,964 : x
  2. Step 2: Convert to fraction form
    615,253.28/849,016.96 = 346,964/x
  3. Step 3: Cross multiply
    615,253.28x = 849,016.96 × 346,964
  4. Step 4: Simplify right side
    615,253.28x = 294,578,320,509.44
  5. Step 5: Solve for x
    x = 294,578,320,509.44/615,253.28
  6. Step 6: Final answer
    x = 478,791.95

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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.