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Finding the Fourth Proportional to 559,318.97, 771,833.61 and 317,569.82

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Solution

The fourth proportional to 559,318.97, 771,833.61 and 317,569.82 is: 438,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,318.97 : 771,833.61 = 317,569.82 : x
  2. Step 2: Convert to fraction form
    559,318.97/771,833.61 = 317,569.82/x
  3. Step 3: Cross multiply
    559,318.97x = 771,833.61 × 317,569.82
  4. Step 4: Simplify right side
    559,318.97x = 245,111,056,738.48
  5. Step 5: Solve for x
    x = 245,111,056,738.48/559,318.97
  6. Step 6: Final answer
    x = 438,231.26

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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.