Home / 892,405.12-1,231,512.23-484,498.87

Finding the Fourth Proportional to 892,405.12, 1,231,512.23 and 484,498.87

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Solution

The fourth proportional to 892,405.12, 1,231,512.23 and 484,498.87 is: 668,604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,405.12 : 1,231,512.23 = 484,498.87 : x
  2. Step 2: Convert to fraction form
    892,405.12/1,231,512.23 = 484,498.87/x
  3. Step 3: Cross multiply
    892,405.12x = 1,231,512.23 × 484,498.87
  4. Step 4: Simplify right side
    892,405.12x = 596,666,280,595.99
  5. Step 5: Solve for x
    x = 596,666,280,595.99/892,405.12
  6. Step 6: Final answer
    x = 668,604.72

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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.