Home / 1,379,475.72-1,903,658.16-775,863.72

Finding the Fourth Proportional to 1,379,475.72, 1,903,658.16 and 775,863.72

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Solution

The fourth proportional to 1,379,475.72, 1,903,658.16 and 775,863.72 is: 1,070,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,475.72 : 1,903,658.16 = 775,863.72 : x
  2. Step 2: Convert to fraction form
    1,379,475.72/1,903,658.16 = 775,863.72/x
  3. Step 3: Cross multiply
    1,379,475.72x = 1,903,658.16 × 775,863.72
  4. Step 4: Simplify right side
    1,379,475.72x = 1,476,979,301,625.96
  5. Step 5: Solve for x
    x = 1,476,979,301,625.96/1,379,475.72
  6. Step 6: Final answer
    x = 1,070,681.62

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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.