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Finding the Fourth Proportional to 430,900.78, 594,620.29 and 247,129.87

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Solution

The fourth proportional to 430,900.78, 594,620.29 and 247,129.87 is: 341,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,900.78 : 594,620.29 = 247,129.87 : x
  2. Step 2: Convert to fraction form
    430,900.78/594,620.29 = 247,129.87/x
  3. Step 3: Cross multiply
    430,900.78x = 594,620.29 × 247,129.87
  4. Step 4: Simplify right side
    430,900.78x = 146,948,433,731.41
  5. Step 5: Solve for x
    x = 146,948,433,731.41/430,900.78
  6. Step 6: Final answer
    x = 341,026.15

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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.