Home / 816,106.08-1,223,823.18-354,513.61

Finding the Fourth Proportional to 816,106.08, 1,223,823.18 and 354,513.61

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Solution

The fourth proportional to 816,106.08, 1,223,823.18 and 354,513.61 is: 531,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,106.08 : 1,223,823.18 = 354,513.61 : x
  2. Step 2: Convert to fraction form
    816,106.08/1,223,823.18 = 354,513.61/x
  3. Step 3: Cross multiply
    816,106.08x = 1,223,823.18 × 354,513.61
  4. Step 4: Simplify right side
    816,106.08x = 433,861,974,408.55
  5. Step 5: Solve for x
    x = 433,861,974,408.55/816,106.08
  6. Step 6: Final answer
    x = 531,624.48

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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.