Home / 806,650.18-1,210,723.40-407,571.21

Finding the Fourth Proportional to 806,650.18, 1,210,723.40 and 407,571.21

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Solution

The fourth proportional to 806,650.18, 1,210,723.40 and 407,571.21 is: 611,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,650.18 : 1,210,723.40 = 407,571.21 : x
  2. Step 2: Convert to fraction form
    806,650.18/1,210,723.40 = 407,571.21/x
  3. Step 3: Cross multiply
    806,650.18x = 1,210,723.40 × 407,571.21
  4. Step 4: Simplify right side
    806,650.18x = 493,456,002,132.24
  5. Step 5: Solve for x
    x = 493,456,002,132.24/806,650.18
  6. Step 6: Final answer
    x = 611,734.82

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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.