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Finding the Fourth Proportional to 555,647.04, 766,787.04 and 313,940.88

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Solution

The fourth proportional to 555,647.04, 766,787.04 and 313,940.88 is: 433,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,647.04 : 766,787.04 = 313,940.88 : x
  2. Step 2: Convert to fraction form
    555,647.04/766,787.04 = 313,940.88/x
  3. Step 3: Cross multiply
    555,647.04x = 766,787.04 × 313,940.88
  4. Step 4: Simplify right side
    555,647.04x = 240,725,798,110.20
  5. Step 5: Solve for x
    x = 240,725,798,110.20/555,647.04
  6. Step 6: Final answer
    x = 433,235.09

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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.