Home / 831,628.60-1,247,442.90-299,231.80

Finding the Fourth Proportional to 831,628.60, 1,247,442.90 and 299,231.80

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Solution

The fourth proportional to 831,628.60, 1,247,442.90 and 299,231.80 is: 448,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,628.60 : 1,247,442.90 = 299,231.80 : x
  2. Step 2: Convert to fraction form
    831,628.60/1,247,442.90 = 299,231.80/x
  3. Step 3: Cross multiply
    831,628.60x = 1,247,442.90 × 299,231.80
  4. Step 4: Simplify right side
    831,628.60x = 373,274,584,364.22
  5. Step 5: Solve for x
    x = 373,274,584,364.22/831,628.60
  6. Step 6: Final answer
    x = 448,847.70

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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.