Home / 787,821.16-1,182,029.57-308,391.60

Finding the Fourth Proportional to 787,821.16, 1,182,029.57 and 308,391.60

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Solution

The fourth proportional to 787,821.16, 1,182,029.57 and 308,391.60 is: 462,703.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,821.16 : 1,182,029.57 = 308,391.60 : x
  2. Step 2: Convert to fraction form
    787,821.16/1,182,029.57 = 308,391.60/x
  3. Step 3: Cross multiply
    787,821.16x = 1,182,029.57 × 308,391.60
  4. Step 4: Simplify right side
    787,821.16x = 364,527,991,351.29
  5. Step 5: Solve for x
    x = 364,527,991,351.29/787,821.16
  6. Step 6: Final answer
    x = 462,703.99

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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.