Home / 639,445.36-959,145.24-159,675.84

Finding the Fourth Proportional to 639,445.36, 959,145.24 and 159,675.84

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Solution

The fourth proportional to 639,445.36, 959,145.24 and 159,675.84 is: 239,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,445.36 : 959,145.24 = 159,675.84 : x
  2. Step 2: Convert to fraction form
    639,445.36/959,145.24 = 159,675.84/x
  3. Step 3: Cross multiply
    639,445.36x = 959,145.24 × 159,675.84
  4. Step 4: Simplify right side
    639,445.36x = 153,152,321,879.00
  5. Step 5: Solve for x
    x = 153,152,321,879.00/639,445.36
  6. Step 6: Final answer
    x = 239,508.07

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1.5x scale

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.