Home / 1,286,337.26-1,930,662.36-687,810.02

Finding the Fourth Proportional to 1,286,337.26, 1,930,662.36 and 687,810.02

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Solution

The fourth proportional to 1,286,337.26, 1,930,662.36 and 687,810.02 is: 1,032,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,337.26 : 1,930,662.36 = 687,810.02 : x
  2. Step 2: Convert to fraction form
    1,286,337.26/1,930,662.36 = 687,810.02/x
  3. Step 3: Cross multiply
    1,286,337.26x = 1,930,662.36 × 687,810.02
  4. Step 4: Simplify right side
    1,286,337.26x = 1,327,928,916,444.85
  5. Step 5: Solve for x
    x = 1,327,928,916,444.85/1,286,337.26
  6. Step 6: Final answer
    x = 1,032,333.40

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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.