Home / 991,052.80-1,486,579.20-359,987.20

Finding the Fourth Proportional to 991,052.80, 1,486,579.20 and 359,987.20

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Solution

The fourth proportional to 991,052.80, 1,486,579.20 and 359,987.20 is: 539,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,052.80 : 1,486,579.20 = 359,987.20 : x
  2. Step 2: Convert to fraction form
    991,052.80/1,486,579.20 = 359,987.20/x
  3. Step 3: Cross multiply
    991,052.80x = 1,486,579.20 × 359,987.20
  4. Step 4: Simplify right side
    991,052.80x = 535,149,483,786.24
  5. Step 5: Solve for x
    x = 535,149,483,786.24/991,052.80
  6. Step 6: Final answer
    x = 539,980.80

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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.