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Finding the Fourth Proportional to 577,322.40, 865,983.60 and 262,394.40

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Solution

The fourth proportional to 577,322.40, 865,983.60 and 262,394.40 is: 393,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,322.40 : 865,983.60 = 262,394.40 : x
  2. Step 2: Convert to fraction form
    577,322.40/865,983.60 = 262,394.40/x
  3. Step 3: Cross multiply
    577,322.40x = 865,983.60 × 262,394.40
  4. Step 4: Simplify right side
    577,322.40x = 227,229,247,131.84
  5. Step 5: Solve for x
    x = 227,229,247,131.84/577,322.40
  6. Step 6: Final answer
    x = 393,591.60

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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.