Home / 1,391,438.66-2,088,504.81-672,286.23

Finding the Fourth Proportional to 1,391,438.66, 2,088,504.81 and 672,286.23

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Solution

The fourth proportional to 1,391,438.66, 2,088,504.81 and 672,286.23 is: 1,009,080.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,438.66 : 2,088,504.81 = 672,286.23 : x
  2. Step 2: Convert to fraction form
    1,391,438.66/2,088,504.81 = 672,286.23/x
  3. Step 3: Cross multiply
    1,391,438.66x = 2,088,504.81 × 672,286.23
  4. Step 4: Simplify right side
    1,391,438.66x = 1,404,073,025,051.77
  5. Step 5: Solve for x
    x = 1,404,073,025,051.77/1,391,438.66
  6. Step 6: Final answer
    x = 1,009,080.08

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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.