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Finding the Fourth Proportional to 555,770.16, 766,952.79 and 314,047.50

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Solution

The fourth proportional to 555,770.16, 766,952.79 and 314,047.50 is: 433,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,770.16 : 766,952.79 = 314,047.50 : x
  2. Step 2: Convert to fraction form
    555,770.16/766,952.79 = 314,047.50/x
  3. Step 3: Cross multiply
    555,770.16x = 766,952.79 × 314,047.50
  4. Step 4: Simplify right side
    555,770.16x = 240,859,606,317.53
  5. Step 5: Solve for x
    x = 240,859,606,317.53/555,770.16
  6. Step 6: Final answer
    x = 433,379.88

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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.