Home / 827,010.30-1,240,515.45-820,011.90

Finding the Fourth Proportional to 827,010.30, 1,240,515.45 and 820,011.90

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Solution

The fourth proportional to 827,010.30, 1,240,515.45 and 820,011.90 is: 1,230,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,010.30 : 1,240,515.45 = 820,011.90 : x
  2. Step 2: Convert to fraction form
    827,010.30/1,240,515.45 = 820,011.90/x
  3. Step 3: Cross multiply
    827,010.30x = 1,240,515.45 × 820,011.90
  4. Step 4: Simplify right side
    827,010.30x = 1,017,237,431,133.86
  5. Step 5: Solve for x
    x = 1,017,237,431,133.86/827,010.30
  6. Step 6: Final answer
    x = 1,230,017.85

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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.