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Finding the Fourth Proportional to 887,662.40, 1,331,464.44 and 355,040.48

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Solution

The fourth proportional to 887,662.40, 1,331,464.44 and 355,040.48 is: 532,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,662.40 : 1,331,464.44 = 355,040.48 : x
  2. Step 2: Convert to fraction form
    887,662.40/1,331,464.44 = 355,040.48/x
  3. Step 3: Cross multiply
    887,662.40x = 1,331,464.44 × 355,040.48
  4. Step 4: Simplify right side
    887,662.40x = 472,723,773,880.53
  5. Step 5: Solve for x
    x = 472,723,773,880.53/887,662.40
  6. Step 6: Final answer
    x = 532,549.06

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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.