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Finding the Fourth Proportional to 566,998.56, 782,429.22 and 312,344.28

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Solution

The fourth proportional to 566,998.56, 782,429.22 and 312,344.28 is: 431,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,998.56 : 782,429.22 = 312,344.28 : x
  2. Step 2: Convert to fraction form
    566,998.56/782,429.22 = 312,344.28/x
  3. Step 3: Cross multiply
    566,998.56x = 782,429.22 × 312,344.28
  4. Step 4: Simplify right side
    566,998.56x = 244,387,291,371.86
  5. Step 5: Solve for x
    x = 244,387,291,371.86/566,998.56
  6. Step 6: Final answer
    x = 431,019.25

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1.5x scale

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.