Home / 811,165.85-1,216,879.99-337,899.05

Finding the Fourth Proportional to 811,165.85, 1,216,879.99 and 337,899.05

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Solution

The fourth proportional to 811,165.85, 1,216,879.99 and 337,899.05 is: 506,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,165.85 : 1,216,879.99 = 337,899.05 : x
  2. Step 2: Convert to fraction form
    811,165.85/1,216,879.99 = 337,899.05/x
  3. Step 3: Cross multiply
    811,165.85x = 1,216,879.99 × 337,899.05
  4. Step 4: Simplify right side
    811,165.85x = 411,182,585,655.86
  5. Step 5: Solve for x
    x = 411,182,585,655.86/811,165.85
  6. Step 6: Final answer
    x = 506,903.23

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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.