Home / 991,327.80-1,485,952.02-485,190.84

Finding the Fourth Proportional to 991,327.80, 1,485,952.02 and 485,190.84

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Solution

The fourth proportional to 991,327.80, 1,485,952.02 and 485,190.84 is: 727,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,327.80 : 1,485,952.02 = 485,190.84 : x
  2. Step 2: Convert to fraction form
    991,327.80/1,485,952.02 = 485,190.84/x
  3. Step 3: Cross multiply
    991,327.80x = 1,485,952.02 × 485,190.84
  4. Step 4: Simplify right side
    991,327.80x = 720,970,308,783.50
  5. Step 5: Solve for x
    x = 720,970,308,783.50/991,327.80
  6. Step 6: Final answer
    x = 727,277.40

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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.