Home / 726,064.20-1,089,096.30-460,999.80

Finding the Fourth Proportional to 726,064.20, 1,089,096.30 and 460,999.80

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Solution

The fourth proportional to 726,064.20, 1,089,096.30 and 460,999.80 is: 691,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,064.20 : 1,089,096.30 = 460,999.80 : x
  2. Step 2: Convert to fraction form
    726,064.20/1,089,096.30 = 460,999.80/x
  3. Step 3: Cross multiply
    726,064.20x = 1,089,096.30 × 460,999.80
  4. Step 4: Simplify right side
    726,064.20x = 502,073,176,480.74
  5. Step 5: Solve for x
    x = 502,073,176,480.74/726,064.20
  6. Step 6: Final answer
    x = 691,499.70

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Double scale
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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.