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Finding the Fourth Proportional to 556,999.47, 768,658.61 and 302,350.66

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Solution

The fourth proportional to 556,999.47, 768,658.61 and 302,350.66 is: 417,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,999.47 : 768,658.61 = 302,350.66 : x
  2. Step 2: Convert to fraction form
    556,999.47/768,658.61 = 302,350.66/x
  3. Step 3: Cross multiply
    556,999.47x = 768,658.61 × 302,350.66
  4. Step 4: Simplify right side
    556,999.47x = 232,404,436,882.41
  5. Step 5: Solve for x
    x = 232,404,436,882.41/556,999.47
  6. Step 6: Final answer
    x = 417,243.55

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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.