Home / 726,305.20-1,089,457.80-637,658.80

Finding the Fourth Proportional to 726,305.20, 1,089,457.80 and 637,658.80

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Solution

The fourth proportional to 726,305.20, 1,089,457.80 and 637,658.80 is: 956,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,305.20 : 1,089,457.80 = 637,658.80 : x
  2. Step 2: Convert to fraction form
    726,305.20/1,089,457.80 = 637,658.80/x
  3. Step 3: Cross multiply
    726,305.20x = 1,089,457.80 × 637,658.80
  4. Step 4: Simplify right side
    726,305.20x = 694,702,353,398.64
  5. Step 5: Solve for x
    x = 694,702,353,398.64/726,305.20
  6. Step 6: Final answer
    x = 956,488.20

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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.