Home / 805,685.94-1,207,440.27-306,777.78

Finding the Fourth Proportional to 805,685.94, 1,207,440.27 and 306,777.78

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Solution

The fourth proportional to 805,685.94, 1,207,440.27 and 306,777.78 is: 459,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,685.94 : 1,207,440.27 = 306,777.78 : x
  2. Step 2: Convert to fraction form
    805,685.94/1,207,440.27 = 306,777.78/x
  3. Step 3: Cross multiply
    805,685.94x = 1,207,440.27 × 306,777.78
  4. Step 4: Simplify right side
    805,685.94x = 370,415,845,513.20
  5. Step 5: Solve for x
    x = 370,415,845,513.20/805,685.94
  6. Step 6: Final answer
    x = 459,752.15

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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.