Home / 726,154.80-1,089,232.20-557,998.80

Finding the Fourth Proportional to 726,154.80, 1,089,232.20 and 557,998.80

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Solution

The fourth proportional to 726,154.80, 1,089,232.20 and 557,998.80 is: 836,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,154.80 : 1,089,232.20 = 557,998.80 : x
  2. Step 2: Convert to fraction form
    726,154.80/1,089,232.20 = 557,998.80/x
  3. Step 3: Cross multiply
    726,154.80x = 1,089,232.20 × 557,998.80
  4. Step 4: Simplify right side
    726,154.80x = 607,790,260,521.36
  5. Step 5: Solve for x
    x = 607,790,260,521.36/726,154.80
  6. Step 6: Final answer
    x = 836,998.20

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Half scale
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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.