Home / 457,943.16-686,774.70-316,696.17

Finding the Fourth Proportional to 457,943.16, 686,774.70 and 316,696.17

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Solution

The fourth proportional to 457,943.16, 686,774.70 and 316,696.17 is: 474,947.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,943.16 : 686,774.70 = 316,696.17 : x
  2. Step 2: Convert to fraction form
    457,943.16/686,774.70 = 316,696.17/x
  3. Step 3: Cross multiply
    457,943.16x = 686,774.70 × 316,696.17
  4. Step 4: Simplify right side
    457,943.16x = 217,498,917,142.90
  5. Step 5: Solve for x
    x = 217,498,917,142.90/457,943.16
  6. Step 6: Final answer
    x = 474,947.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.