Home / 820,465.46-1,230,842.64-280,594.82

Finding the Fourth Proportional to 820,465.46, 1,230,842.64 and 280,594.82

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Solution

The fourth proportional to 820,465.46, 1,230,842.64 and 280,594.82 is: 420,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,465.46 : 1,230,842.64 = 280,594.82 : x
  2. Step 2: Convert to fraction form
    820,465.46/1,230,842.64 = 280,594.82/x
  3. Step 3: Cross multiply
    820,465.46x = 1,230,842.64 × 280,594.82
  4. Step 4: Simplify right side
    820,465.46x = 345,368,069,019.13
  5. Step 5: Solve for x
    x = 345,368,069,019.13/820,465.46
  6. Step 6: Final answer
    x = 420,941.63

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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.