Home / 961,531.83-1,442,384.62-278,408.71

Finding the Fourth Proportional to 961,531.83, 1,442,384.62 and 278,408.71

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Solution

The fourth proportional to 961,531.83, 1,442,384.62 and 278,408.71 is: 417,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,531.83 : 1,442,384.62 = 278,408.71 : x
  2. Step 2: Convert to fraction form
    961,531.83/1,442,384.62 = 278,408.71/x
  3. Step 3: Cross multiply
    961,531.83x = 1,442,384.62 × 278,408.71
  4. Step 4: Simplify right side
    961,531.83x = 401,572,436,399.94
  5. Step 5: Solve for x
    x = 401,572,436,399.94/961,531.83
  6. Step 6: Final answer
    x = 417,638.22

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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.