Home / 787,247.40-1,180,986.30-413,298.60

Finding the Fourth Proportional to 787,247.40, 1,180,986.30 and 413,298.60

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Solution

The fourth proportional to 787,247.40, 1,180,986.30 and 413,298.60 is: 620,008.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,247.40 : 1,180,986.30 = 413,298.60 : x
  2. Step 2: Convert to fraction form
    787,247.40/1,180,986.30 = 413,298.60/x
  3. Step 3: Cross multiply
    787,247.40x = 1,180,986.30 × 413,298.60
  4. Step 4: Simplify right side
    787,247.40x = 488,099,984,409.18
  5. Step 5: Solve for x
    x = 488,099,984,409.18/787,247.40
  6. Step 6: Final answer
    x = 620,008.38

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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.