Home / 827,099.20-1,240,821.60-266,190.40

Finding the Fourth Proportional to 827,099.20, 1,240,821.60 and 266,190.40

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Solution

The fourth proportional to 827,099.20, 1,240,821.60 and 266,190.40 is: 399,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,099.20 : 1,240,821.60 = 266,190.40 : x
  2. Step 2: Convert to fraction form
    827,099.20/1,240,821.60 = 266,190.40/x
  3. Step 3: Cross multiply
    827,099.20x = 1,240,821.60 × 266,190.40
  4. Step 4: Simplify right side
    827,099.20x = 330,294,798,032.64
  5. Step 5: Solve for x
    x = 330,294,798,032.64/827,099.20
  6. Step 6: Final answer
    x = 399,341.21

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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.