Home / 775,903.42-1,163,855.77-371,000.36

Finding the Fourth Proportional to 775,903.42, 1,163,855.77 and 371,000.36

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Solution

The fourth proportional to 775,903.42, 1,163,855.77 and 371,000.36 is: 556,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,903.42 : 1,163,855.77 = 371,000.36 : x
  2. Step 2: Convert to fraction form
    775,903.42/1,163,855.77 = 371,000.36/x
  3. Step 3: Cross multiply
    775,903.42x = 1,163,855.77 × 371,000.36
  4. Step 4: Simplify right side
    775,903.42x = 431,790,901,983.80
  5. Step 5: Solve for x
    x = 431,790,901,983.80/775,903.42
  6. Step 6: Final answer
    x = 556,500.84

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Double scale
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Similar ratio
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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.