Home / 808,212.30-1,212,318.45-528,045.90

Finding the Fourth Proportional to 808,212.30, 1,212,318.45 and 528,045.90

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Solution

The fourth proportional to 808,212.30, 1,212,318.45 and 528,045.90 is: 792,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.30 : 1,212,318.45 = 528,045.90 : x
  2. Step 2: Convert to fraction form
    808,212.30/1,212,318.45 = 528,045.90/x
  3. Step 3: Cross multiply
    808,212.30x = 1,212,318.45 × 528,045.90
  4. Step 4: Simplify right side
    808,212.30x = 640,159,787,016.86
  5. Step 5: Solve for x
    x = 640,159,787,016.86/808,212.30
  6. Step 6: Final answer
    x = 792,068.85

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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.