Home / 810,921.60-1,216,267.20-250,012.80

Finding the Fourth Proportional to 810,921.60, 1,216,267.20 and 250,012.80

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Solution

The fourth proportional to 810,921.60, 1,216,267.20 and 250,012.80 is: 374,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,921.60 : 1,216,267.20 = 250,012.80 : x
  2. Step 2: Convert to fraction form
    810,921.60/1,216,267.20 = 250,012.80/x
  3. Step 3: Cross multiply
    810,921.60x = 1,216,267.20 × 250,012.80
  4. Step 4: Simplify right side
    810,921.60x = 304,082,368,220.16
  5. Step 5: Solve for x
    x = 304,082,368,220.16/810,921.60
  6. Step 6: Final answer
    x = 374,983.68

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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.