Home / 880,840.20-1,317,761.10-763,811.40

Finding the Fourth Proportional to 880,840.20, 1,317,761.10 and 763,811.40

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Solution

The fourth proportional to 880,840.20, 1,317,761.10 and 763,811.40 is: 1,142,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,840.20 : 1,317,761.10 = 763,811.40 : x
  2. Step 2: Convert to fraction form
    880,840.20/1,317,761.10 = 763,811.40/x
  3. Step 3: Cross multiply
    880,840.20x = 1,317,761.10 × 763,811.40
  4. Step 4: Simplify right side
    880,840.20x = 1,006,520,950,656.54
  5. Step 5: Solve for x
    x = 1,006,520,950,656.54/880,840.20
  6. Step 6: Final answer
    x = 1,142,682.81

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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.