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Finding the Fourth Proportional to 917,833.94, 1,376,543 and 349,012.26

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Solution

The fourth proportional to 917,833.94, 1,376,543 and 349,012.26 is: 523,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,833.94 : 1,376,543 = 349,012.26 : x
  2. Step 2: Convert to fraction form
    917,833.94/1,376,543 = 349,012.26/x
  3. Step 3: Cross multiply
    917,833.94x = 1,376,543 × 349,012.26
  4. Step 4: Simplify right side
    917,833.94x = 480,430,383,417.18
  5. Step 5: Solve for x
    x = 480,430,383,417.18/917,833.94
  6. Step 6: Final answer
    x = 523,439.33

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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.