Home / 1,420,490.50-1,960,265.28-775,910.86

Finding the Fourth Proportional to 1,420,490.50, 1,960,265.28 and 775,910.86

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Solution

The fourth proportional to 1,420,490.50, 1,960,265.28 and 775,910.86 is: 1,070,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,490.50 : 1,960,265.28 = 775,910.86 : x
  2. Step 2: Convert to fraction form
    1,420,490.50/1,960,265.28 = 775,910.86/x
  3. Step 3: Cross multiply
    1,420,490.50x = 1,960,265.28 × 775,910.86
  4. Step 4: Simplify right side
    1,420,490.50x = 1,520,991,119,232.94
  5. Step 5: Solve for x
    x = 1,520,991,119,232.94/1,420,490.50
  6. Step 6: Final answer
    x = 1,070,750.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.