Home / 807,137.55-1,113,819.30-485,025.26

Finding the Fourth Proportional to 807,137.55, 1,113,819.30 and 485,025.26

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Solution

The fourth proportional to 807,137.55, 1,113,819.30 and 485,025.26 is: 669,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,137.55 : 1,113,819.30 = 485,025.26 : x
  2. Step 2: Convert to fraction form
    807,137.55/1,113,819.30 = 485,025.26/x
  3. Step 3: Cross multiply
    807,137.55x = 1,113,819.30 × 485,025.26
  4. Step 4: Simplify right side
    807,137.55x = 540,230,490,006.42
  5. Step 5: Solve for x
    x = 540,230,490,006.42/807,137.55
  6. Step 6: Final answer
    x = 669,316.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.