Home / 987,029.60-1,362,105.20-534,320.60

Finding the Fourth Proportional to 987,029.60, 1,362,105.20 and 534,320.60

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Solution

The fourth proportional to 987,029.60, 1,362,105.20 and 534,320.60 is: 737,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,029.60 : 1,362,105.20 = 534,320.60 : x
  2. Step 2: Convert to fraction form
    987,029.60/1,362,105.20 = 534,320.60/x
  3. Step 3: Cross multiply
    987,029.60x = 1,362,105.20 × 534,320.60
  4. Step 4: Simplify right side
    987,029.60x = 727,800,865,055.52
  5. Step 5: Solve for x
    x = 727,800,865,055.52/987,029.60
  6. Step 6: Final answer
    x = 737,364.78

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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.