Home / 987,426.72-1,481,258.79-347,597.60

Finding the Fourth Proportional to 987,426.72, 1,481,258.79 and 347,597.60

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Solution

The fourth proportional to 987,426.72, 1,481,258.79 and 347,597.60 is: 521,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,426.72 : 1,481,258.79 = 347,597.60 : x
  2. Step 2: Convert to fraction form
    987,426.72/1,481,258.79 = 347,597.60/x
  3. Step 3: Cross multiply
    987,426.72x = 1,481,258.79 × 347,597.60
  4. Step 4: Simplify right side
    987,426.72x = 514,881,992,976.61
  5. Step 5: Solve for x
    x = 514,881,992,976.61/987,426.72
  6. Step 6: Final answer
    x = 521,438.18

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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.