Home / 763,089.12-1,144,545.39-403,115.67

Finding the Fourth Proportional to 763,089.12, 1,144,545.39 and 403,115.67

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Solution

The fourth proportional to 763,089.12, 1,144,545.39 and 403,115.67 is: 604,626.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,089.12 : 1,144,545.39 = 403,115.67 : x
  2. Step 2: Convert to fraction form
    763,089.12/1,144,545.39 = 403,115.67/x
  3. Step 3: Cross multiply
    763,089.12x = 1,144,545.39 × 403,115.67
  4. Step 4: Simplify right side
    763,089.12x = 461,384,181,735.26
  5. Step 5: Solve for x
    x = 461,384,181,735.26/763,089.12
  6. Step 6: Final answer
    x = 604,626.86

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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.