Home / 1,442,571.90-1,990,575.77-830,923.61

Finding the Fourth Proportional to 1,442,571.90, 1,990,575.77 and 830,923.61

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Solution

The fourth proportional to 1,442,571.90, 1,990,575.77 and 830,923.61 is: 1,146,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,571.90 : 1,990,575.77 = 830,923.61 : x
  2. Step 2: Convert to fraction form
    1,442,571.90/1,990,575.77 = 830,923.61/x
  3. Step 3: Cross multiply
    1,442,571.90x = 1,990,575.77 × 830,923.61
  4. Step 4: Simplify right side
    1,442,571.90x = 1,654,016,390,679.43
  5. Step 5: Solve for x
    x = 1,654,016,390,679.43/1,442,571.90
  6. Step 6: Final answer
    x = 1,146,574.66

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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.