Home / 831,566.90-1,247,350.35-299,105.30

Finding the Fourth Proportional to 831,566.90, 1,247,350.35 and 299,105.30

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Solution

The fourth proportional to 831,566.90, 1,247,350.35 and 299,105.30 is: 448,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,566.90 : 1,247,350.35 = 299,105.30 : x
  2. Step 2: Convert to fraction form
    831,566.90/1,247,350.35 = 299,105.30/x
  3. Step 3: Cross multiply
    831,566.90x = 1,247,350.35 × 299,105.30
  4. Step 4: Simplify right side
    831,566.90x = 373,089,100,641.86
  5. Step 5: Solve for x
    x = 373,089,100,641.86/831,566.90
  6. Step 6: Final answer
    x = 448,657.95

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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.