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Finding the Fourth Proportional to 555,545.88, 766,700.50 and 313,872.84

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Solution

The fourth proportional to 555,545.88, 766,700.50 and 313,872.84 is: 433,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,545.88 : 766,700.50 = 313,872.84 : x
  2. Step 2: Convert to fraction form
    555,545.88/766,700.50 = 313,872.84/x
  3. Step 3: Cross multiply
    555,545.88x = 766,700.50 × 313,872.84
  4. Step 4: Simplify right side
    555,545.88x = 240,646,463,364.42
  5. Step 5: Solve for x
    x = 240,646,463,364.42/555,545.88
  6. Step 6: Final answer
    x = 433,171.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.