Home / 442,919.40-664,379.10-123,070.65

Finding the Fourth Proportional to 442,919.40, 664,379.10 and 123,070.65

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Solution

The fourth proportional to 442,919.40, 664,379.10 and 123,070.65 is: 184,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,919.40 : 664,379.10 = 123,070.65 : x
  2. Step 2: Convert to fraction form
    442,919.40/664,379.10 = 123,070.65/x
  3. Step 3: Cross multiply
    442,919.40x = 664,379.10 × 123,070.65
  4. Step 4: Simplify right side
    442,919.40x = 81,765,567,683.42
  5. Step 5: Solve for x
    x = 81,765,567,683.42/442,919.40
  6. Step 6: Final answer
    x = 184,605.98

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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.