Home / 811,166.22-1,216,880.55-337,899.42

Finding the Fourth Proportional to 811,166.22, 1,216,880.55 and 337,899.42

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Solution

The fourth proportional to 811,166.22, 1,216,880.55 and 337,899.42 is: 506,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,166.22 : 1,216,880.55 = 337,899.42 : x
  2. Step 2: Convert to fraction form
    811,166.22/1,216,880.55 = 337,899.42/x
  3. Step 3: Cross multiply
    811,166.22x = 1,216,880.55 × 337,899.42
  4. Step 4: Simplify right side
    811,166.22x = 411,183,232,054.28
  5. Step 5: Solve for x
    x = 411,183,232,054.28/811,166.22
  6. Step 6: Final answer
    x = 506,903.79

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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.