Home / 831,523.60-1,247,285.40-820,464.40

Finding the Fourth Proportional to 831,523.60, 1,247,285.40 and 820,464.40

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Solution

The fourth proportional to 831,523.60, 1,247,285.40 and 820,464.40 is: 1,230,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,523.60 : 1,247,285.40 = 820,464.40 : x
  2. Step 2: Convert to fraction form
    831,523.60/1,247,285.40 = 820,464.40/x
  3. Step 3: Cross multiply
    831,523.60x = 1,247,285.40 × 820,464.40
  4. Step 4: Simplify right side
    831,523.60x = 1,023,353,267,339.76
  5. Step 5: Solve for x
    x = 1,023,353,267,339.76/831,523.60
  6. Step 6: Final answer
    x = 1,230,696.60

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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.