Home / 825,963.20-1,238,944.80-660,075.20

Finding the Fourth Proportional to 825,963.20, 1,238,944.80 and 660,075.20

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Solution

The fourth proportional to 825,963.20, 1,238,944.80 and 660,075.20 is: 990,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,963.20 : 1,238,944.80 = 660,075.20 : x
  2. Step 2: Convert to fraction form
    825,963.20/1,238,944.80 = 660,075.20/x
  3. Step 3: Cross multiply
    825,963.20x = 1,238,944.80 × 660,075.20
  4. Step 4: Simplify right side
    825,963.20x = 817,796,736,648.96
  5. Step 5: Solve for x
    x = 817,796,736,648.96/825,963.20
  6. Step 6: Final answer
    x = 990,112.80

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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.