Home / 1,170,079.80-1,755,119.70-990,718.46

Finding the Fourth Proportional to 1,170,079.80, 1,755,119.70 and 990,718.46

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Solution

The fourth proportional to 1,170,079.80, 1,755,119.70 and 990,718.46 is: 1,486,077.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,079.80 : 1,755,119.70 = 990,718.46 : x
  2. Step 2: Convert to fraction form
    1,170,079.80/1,755,119.70 = 990,718.46/x
  3. Step 3: Cross multiply
    1,170,079.80x = 1,755,119.70 × 990,718.46
  4. Step 4: Simplify right side
    1,170,079.80x = 1,738,829,486,299.66
  5. Step 5: Solve for x
    x = 1,738,829,486,299.66/1,170,079.80
  6. Step 6: Final answer
    x = 1,486,077.69

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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.