Home / 836,660.70-1,254,991.05-778,923.90

Finding the Fourth Proportional to 836,660.70, 1,254,991.05 and 778,923.90

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Solution

The fourth proportional to 836,660.70, 1,254,991.05 and 778,923.90 is: 1,168,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,660.70 : 1,254,991.05 = 778,923.90 : x
  2. Step 2: Convert to fraction form
    836,660.70/1,254,991.05 = 778,923.90/x
  3. Step 3: Cross multiply
    836,660.70x = 1,254,991.05 × 778,923.90
  4. Step 4: Simplify right side
    836,660.70x = 977,542,523,131.10
  5. Step 5: Solve for x
    x = 977,542,523,131.10/836,660.70
  6. Step 6: Final answer
    x = 1,168,385.85

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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.