Home / 1,040,878.31-1,436,808.44-678,390.35

Finding the Fourth Proportional to 1,040,878.31, 1,436,808.44 and 678,390.35

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Solution

The fourth proportional to 1,040,878.31, 1,436,808.44 and 678,390.35 is: 936,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,878.31 : 1,436,808.44 = 678,390.35 : x
  2. Step 2: Convert to fraction form
    1,040,878.31/1,436,808.44 = 678,390.35/x
  3. Step 3: Cross multiply
    1,040,878.31x = 1,436,808.44 × 678,390.35
  4. Step 4: Simplify right side
    1,040,878.31x = 974,716,975,006.49
  5. Step 5: Solve for x
    x = 974,716,975,006.49/1,040,878.31
  6. Step 6: Final answer
    x = 936,437.02

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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.