Home / 839,074.60-1,257,856.17-306,221.77

Finding the Fourth Proportional to 839,074.60, 1,257,856.17 and 306,221.77

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Solution

The fourth proportional to 839,074.60, 1,257,856.17 and 306,221.77 is: 459,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,074.60 : 1,257,856.17 = 306,221.77 : x
  2. Step 2: Convert to fraction form
    839,074.60/1,257,856.17 = 306,221.77/x
  3. Step 3: Cross multiply
    839,074.60x = 1,257,856.17 × 306,221.77
  4. Step 4: Simplify right side
    839,074.60x = 385,182,942,782.82
  5. Step 5: Solve for x
    x = 385,182,942,782.82/839,074.60
  6. Step 6: Final answer
    x = 459,056.85

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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.