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Finding the Fourth Proportional to 563,379.78, 845,108.70 and 226,420.71

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Solution

The fourth proportional to 563,379.78, 845,108.70 and 226,420.71 is: 339,646.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,379.78 : 845,108.70 = 226,420.71 : x
  2. Step 2: Convert to fraction form
    563,379.78/845,108.70 = 226,420.71/x
  3. Step 3: Cross multiply
    563,379.78x = 845,108.70 × 226,420.71
  4. Step 4: Simplify right side
    563,379.78x = 191,350,111,881.18
  5. Step 5: Solve for x
    x = 191,350,111,881.18/563,379.78
  6. Step 6: Final answer
    x = 339,646.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.