Home / 688,510.80-1,032,767.04-215,198.64

Finding the Fourth Proportional to 688,510.80, 1,032,767.04 and 215,198.64

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Solution

The fourth proportional to 688,510.80, 1,032,767.04 and 215,198.64 is: 322,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,510.80 : 1,032,767.04 = 215,198.64 : x
  2. Step 2: Convert to fraction form
    688,510.80/1,032,767.04 = 215,198.64/x
  3. Step 3: Cross multiply
    688,510.80x = 1,032,767.04 × 215,198.64
  4. Step 4: Simplify right side
    688,510.80x = 222,250,062,444.83
  5. Step 5: Solve for x
    x = 222,250,062,444.83/688,510.80
  6. Step 6: Final answer
    x = 322,798.22

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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.