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Finding the Fourth Proportional to 568,892.71, 785,063.79 and 310,766.59

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Solution

The fourth proportional to 568,892.71, 785,063.79 and 310,766.59 is: 428,853.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,892.71 : 785,063.79 = 310,766.59 : x
  2. Step 2: Convert to fraction form
    568,892.71/785,063.79 = 310,766.59/x
  3. Step 3: Cross multiply
    568,892.71x = 785,063.79 × 310,766.59
  4. Step 4: Simplify right side
    568,892.71x = 243,971,596,950.78
  5. Step 5: Solve for x
    x = 243,971,596,950.78/568,892.71
  6. Step 6: Final answer
    x = 428,853.44

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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.