Home / 726,543.80-1,089,821.88-253,228.40

Finding the Fourth Proportional to 726,543.80, 1,089,821.88 and 253,228.40

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Solution

The fourth proportional to 726,543.80, 1,089,821.88 and 253,228.40 is: 379,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,543.80 : 1,089,821.88 = 253,228.40 : x
  2. Step 2: Convert to fraction form
    726,543.80/1,089,821.88 = 253,228.40/x
  3. Step 3: Cross multiply
    726,543.80x = 1,089,821.88 × 253,228.40
  4. Step 4: Simplify right side
    726,543.80x = 275,973,850,957.39
  5. Step 5: Solve for x
    x = 275,973,850,957.39/726,543.80
  6. Step 6: Final answer
    x = 379,844.75

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1.5x scale

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.