Home / 987,067.20-1,362,153.12-534,358.32

Finding the Fourth Proportional to 987,067.20, 1,362,153.12 and 534,358.32

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Solution

The fourth proportional to 987,067.20, 1,362,153.12 and 534,358.32 is: 737,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,067.20 : 1,362,153.12 = 534,358.32 : x
  2. Step 2: Convert to fraction form
    987,067.20/1,362,153.12 = 534,358.32/x
  3. Step 3: Cross multiply
    987,067.20x = 1,362,153.12 × 534,358.32
  4. Step 4: Simplify right side
    987,067.20x = 727,877,852,785.96
  5. Step 5: Solve for x
    x = 727,877,852,785.96/987,067.20
  6. Step 6: Final answer
    x = 737,414.69

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1.5x scale

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.