Home / 1,320,986.72-1,822,990.92-740,253.08

Finding the Fourth Proportional to 1,320,986.72, 1,822,990.92 and 740,253.08

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Solution

The fourth proportional to 1,320,986.72, 1,822,990.92 and 740,253.08 is: 1,021,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,986.72 : 1,822,990.92 = 740,253.08 : x
  2. Step 2: Convert to fraction form
    1,320,986.72/1,822,990.92 = 740,253.08/x
  3. Step 3: Cross multiply
    1,320,986.72x = 1,822,990.92 × 740,253.08
  4. Step 4: Simplify right side
    1,320,986.72x = 1,349,474,643,342.03
  5. Step 5: Solve for x
    x = 1,349,474,643,342.03/1,320,986.72
  6. Step 6: Final answer
    x = 1,021,565.64

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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.