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Finding the Fourth Proportional to 631,382.40, 945,230.40 and 565,027.20

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Solution

The fourth proportional to 631,382.40, 945,230.40 and 565,027.20 is: 845,891.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,382.40 : 945,230.40 = 565,027.20 : x
  2. Step 2: Convert to fraction form
    631,382.40/945,230.40 = 565,027.20/x
  3. Step 3: Cross multiply
    631,382.40x = 945,230.40 × 565,027.20
  4. Step 4: Simplify right side
    631,382.40x = 534,080,886,266.88
  5. Step 5: Solve for x
    x = 534,080,886,266.88/631,382.40
  6. Step 6: Final answer
    x = 845,891.31

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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.