Home / 827,281.40-1,240,922.10-266,315.90

Finding the Fourth Proportional to 827,281.40, 1,240,922.10 and 266,315.90

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Solution

The fourth proportional to 827,281.40, 1,240,922.10 and 266,315.90 is: 399,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,281.40 : 1,240,922.10 = 266,315.90 : x
  2. Step 2: Convert to fraction form
    827,281.40/1,240,922.10 = 266,315.90/x
  3. Step 3: Cross multiply
    827,281.40x = 1,240,922.10 × 266,315.90
  4. Step 4: Simplify right side
    827,281.40x = 330,477,285,891.39
  5. Step 5: Solve for x
    x = 330,477,285,891.39/827,281.40
  6. Step 6: Final answer
    x = 399,473.85

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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.