Home / 726,029.20-1,089,043.80-525,408.40

Finding the Fourth Proportional to 726,029.20, 1,089,043.80 and 525,408.40

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Solution

The fourth proportional to 726,029.20, 1,089,043.80 and 525,408.40 is: 788,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,029.20 : 1,089,043.80 = 525,408.40 : x
  2. Step 2: Convert to fraction form
    726,029.20/1,089,043.80 = 525,408.40/x
  3. Step 3: Cross multiply
    726,029.20x = 1,089,043.80 × 525,408.40
  4. Step 4: Simplify right side
    726,029.20x = 572,192,760,487.92
  5. Step 5: Solve for x
    x = 572,192,760,487.92/726,029.20
  6. Step 6: Final answer
    x = 788,112.60

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Similar ratio
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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.