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Finding the Fourth Proportional to 555,776.00, 766,960.80 and 314,053.37

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Solution

The fourth proportional to 555,776.00, 766,960.80 and 314,053.37 is: 433,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,776.00 : 766,960.80 = 314,053.37 : x
  2. Step 2: Convert to fraction form
    555,776.00/766,960.80 = 314,053.37/x
  3. Step 3: Cross multiply
    555,776.00x = 766,960.80 × 314,053.37
  4. Step 4: Simplify right side
    555,776.00x = 240,866,620,063.09
  5. Step 5: Solve for x
    x = 240,866,620,063.09/555,776.00
  6. Step 6: Final answer
    x = 433,387.95

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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.