Home / 772,928.80-1,158,010.80-654,042.40

Finding the Fourth Proportional to 772,928.80, 1,158,010.80 and 654,042.40

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Solution

The fourth proportional to 772,928.80, 1,158,010.80 and 654,042.40 is: 979,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,928.80 : 1,158,010.80 = 654,042.40 : x
  2. Step 2: Convert to fraction form
    772,928.80/1,158,010.80 = 654,042.40/x
  3. Step 3: Cross multiply
    772,928.80x = 1,158,010.80 × 654,042.40
  4. Step 4: Simplify right side
    772,928.80x = 757,388,162,857.92
  5. Step 5: Solve for x
    x = 757,388,162,857.92/772,928.80
  6. Step 6: Final answer
    x = 979,893.83

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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.