Home / 1,170,090.80-1,755,136.20-990,729.46

Finding the Fourth Proportional to 1,170,090.80, 1,755,136.20 and 990,729.46

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Solution

The fourth proportional to 1,170,090.80, 1,755,136.20 and 990,729.46 is: 1,486,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,090.80 : 1,755,136.20 = 990,729.46 : x
  2. Step 2: Convert to fraction form
    1,170,090.80/1,755,136.20 = 990,729.46/x
  3. Step 3: Cross multiply
    1,170,090.80x = 1,755,136.20 × 990,729.46
  4. Step 4: Simplify right side
    1,170,090.80x = 1,738,865,139,652.45
  5. Step 5: Solve for x
    x = 1,738,865,139,652.45/1,170,090.80
  6. Step 6: Final answer
    x = 1,486,094.19

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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.