Home / 1,319,976.96-1,979,648.24-609,322.40

Finding the Fourth Proportional to 1,319,976.96, 1,979,648.24 and 609,322.40

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Solution

The fourth proportional to 1,319,976.96, 1,979,648.24 and 609,322.40 is: 913,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,976.96 : 1,979,648.24 = 609,322.40 : x
  2. Step 2: Convert to fraction form
    1,319,976.96/1,979,648.24 = 609,322.40/x
  3. Step 3: Cross multiply
    1,319,976.96x = 1,979,648.24 × 609,322.40
  4. Step 4: Simplify right side
    1,319,976.96x = 1,206,244,016,752.58
  5. Step 5: Solve for x
    x = 1,206,244,016,752.58/1,319,976.96
  6. Step 6: Final answer
    x = 913,837.18

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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.