Home / 1,286,040.30-1,928,666.40-889,231.02

Finding the Fourth Proportional to 1,286,040.30, 1,928,666.40 and 889,231.02

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Solution

The fourth proportional to 1,286,040.30, 1,928,666.40 and 889,231.02 is: 1,333,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,040.30 : 1,928,666.40 = 889,231.02 : x
  2. Step 2: Convert to fraction form
    1,286,040.30/1,928,666.40 = 889,231.02/x
  3. Step 3: Cross multiply
    1,286,040.30x = 1,928,666.40 × 889,231.02
  4. Step 4: Simplify right side
    1,286,040.30x = 1,715,029,990,111.73
  5. Step 5: Solve for x
    x = 1,715,029,990,111.73/1,286,040.30
  6. Step 6: Final answer
    x = 1,333,574.06

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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.