Home / 807,631.20-1,114,532.64-485,346.24

Finding the Fourth Proportional to 807,631.20, 1,114,532.64 and 485,346.24

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Solution

The fourth proportional to 807,631.20, 1,114,532.64 and 485,346.24 is: 669,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,631.20 : 1,114,532.64 = 485,346.24 : x
  2. Step 2: Convert to fraction form
    807,631.20/1,114,532.64 = 485,346.24/x
  3. Step 3: Cross multiply
    807,631.20x = 1,114,532.64 × 485,346.24
  4. Step 4: Simplify right side
    807,631.20x = 540,934,226,181.27
  5. Step 5: Solve for x
    x = 540,934,226,181.27/807,631.20
  6. Step 6: Final answer
    x = 669,778.76

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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.