Home / 1,986,221.07-2,740,762.44-1,170,371.66

Finding the Fourth Proportional to 1,986,221.07, 2,740,762.44 and 1,170,371.66

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Solution

The fourth proportional to 1,986,221.07, 2,740,762.44 and 1,170,371.66 is: 1,614,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,221.07 : 2,740,762.44 = 1,170,371.66 : x
  2. Step 2: Convert to fraction form
    1,986,221.07/2,740,762.44 = 1,170,371.66/x
  3. Step 3: Cross multiply
    1,986,221.07x = 2,740,762.44 × 1,170,371.66
  4. Step 4: Simplify right side
    1,986,221.07x = 3,207,710,672,864.64
  5. Step 5: Solve for x
    x = 3,207,710,672,864.64/1,986,221.07
  6. Step 6: Final answer
    x = 1,614,981.70

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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.