Home / 1,149,979.80-1,586,973.78-640,700.04

Finding the Fourth Proportional to 1,149,979.80, 1,586,973.78 and 640,700.04

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Solution

The fourth proportional to 1,149,979.80, 1,586,973.78 and 640,700.04 is: 884,166.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,979.80 : 1,586,973.78 = 640,700.04 : x
  2. Step 2: Convert to fraction form
    1,149,979.80/1,586,973.78 = 640,700.04/x
  3. Step 3: Cross multiply
    1,149,979.80x = 1,586,973.78 × 640,700.04
  4. Step 4: Simplify right side
    1,149,979.80x = 1,016,774,164,324.95
  5. Step 5: Solve for x
    x = 1,016,774,164,324.95/1,149,979.80
  6. Step 6: Final answer
    x = 884,166.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.