Home / 774,005.68-1,068,138.30-429,863.80

Finding the Fourth Proportional to 774,005.68, 1,068,138.30 and 429,863.80

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Solution

The fourth proportional to 774,005.68, 1,068,138.30 and 429,863.80 is: 593,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,005.68 : 1,068,138.30 = 429,863.80 : x
  2. Step 2: Convert to fraction form
    774,005.68/1,068,138.30 = 429,863.80/x
  3. Step 3: Cross multiply
    774,005.68x = 1,068,138.30 × 429,863.80
  4. Step 4: Simplify right side
    774,005.68x = 459,153,988,563.54
  5. Step 5: Solve for x
    x = 459,153,988,563.54/774,005.68
  6. Step 6: Final answer
    x = 593,217.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.