Home / 811,590.69-1,216,429.49-331,522.32

Finding the Fourth Proportional to 811,590.69, 1,216,429.49 and 331,522.32

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Solution

The fourth proportional to 811,590.69, 1,216,429.49 and 331,522.32 is: 496,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,590.69 : 1,216,429.49 = 331,522.32 : x
  2. Step 2: Convert to fraction form
    811,590.69/1,216,429.49 = 331,522.32/x
  3. Step 3: Cross multiply
    811,590.69x = 1,216,429.49 × 331,522.32
  4. Step 4: Simplify right side
    811,590.69x = 403,273,524,983.61
  5. Step 5: Solve for x
    x = 403,273,524,983.61/811,590.69
  6. Step 6: Final answer
    x = 496,892.74

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1.5x scale

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.