Home / 1,118,393.28-1,677,645.24-319,792.32

Finding the Fourth Proportional to 1,118,393.28, 1,677,645.24 and 319,792.32

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Solution

The fourth proportional to 1,118,393.28, 1,677,645.24 and 319,792.32 is: 479,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,393.28 : 1,677,645.24 = 319,792.32 : x
  2. Step 2: Convert to fraction form
    1,118,393.28/1,677,645.24 = 319,792.32/x
  3. Step 3: Cross multiply
    1,118,393.28x = 1,677,645.24 × 319,792.32
  4. Step 4: Simplify right side
    1,118,393.28x = 536,498,063,436.56
  5. Step 5: Solve for x
    x = 536,498,063,436.56/1,118,393.28
  6. Step 6: Final answer
    x = 479,704.30

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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.