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Finding the Fourth Proportional to 609,574.48, 913,567.41 and 339,691.86

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Solution

The fourth proportional to 609,574.48, 913,567.41 and 339,691.86 is: 509,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,574.48 : 913,567.41 = 339,691.86 : x
  2. Step 2: Convert to fraction form
    609,574.48/913,567.41 = 339,691.86/x
  3. Step 3: Cross multiply
    609,574.48x = 913,567.41 × 339,691.86
  4. Step 4: Simplify right side
    609,574.48x = 310,331,412,738.28
  5. Step 5: Solve for x
    x = 310,331,412,738.28/609,574.48
  6. Step 6: Final answer
    x = 509,095.15

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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.