Home / 750,990.40-1,126,485.60-550,223.80

Finding the Fourth Proportional to 750,990.40, 1,126,485.60 and 550,223.80

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Solution

The fourth proportional to 750,990.40, 1,126,485.60 and 550,223.80 is: 825,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,990.40 : 1,126,485.60 = 550,223.80 : x
  2. Step 2: Convert to fraction form
    750,990.40/1,126,485.60 = 550,223.80/x
  3. Step 3: Cross multiply
    750,990.40x = 1,126,485.60 × 550,223.80
  4. Step 4: Simplify right side
    750,990.40x = 619,819,187,477.28
  5. Step 5: Solve for x
    x = 619,819,187,477.28/750,990.40
  6. Step 6: Final answer
    x = 825,335.70

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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.