Home / 907,742.20-1,361,807.70-276,719.80

Finding the Fourth Proportional to 907,742.20, 1,361,807.70 and 276,719.80

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Solution

The fourth proportional to 907,742.20, 1,361,807.70 and 276,719.80 is: 415,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,742.20 : 1,361,807.70 = 276,719.80 : x
  2. Step 2: Convert to fraction form
    907,742.20/1,361,807.70 = 276,719.80/x
  3. Step 3: Cross multiply
    907,742.20x = 1,361,807.70 × 276,719.80
  4. Step 4: Simplify right side
    907,742.20x = 376,839,154,382.46
  5. Step 5: Solve for x
    x = 376,839,154,382.46/907,742.20
  6. Step 6: Final answer
    x = 415,138.96

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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.