Home / 808,213.75-1,212,326.70-358,813.60

Finding the Fourth Proportional to 808,213.75, 1,212,326.70 and 358,813.60

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Solution

The fourth proportional to 808,213.75, 1,212,326.70 and 358,813.60 is: 538,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,213.75 : 1,212,326.70 = 358,813.60 : x
  2. Step 2: Convert to fraction form
    808,213.75/1,212,326.70 = 358,813.60/x
  3. Step 3: Cross multiply
    808,213.75x = 1,212,326.70 × 358,813.60
  4. Step 4: Simplify right side
    808,213.75x = 434,999,307,603.12
  5. Step 5: Solve for x
    x = 434,999,307,603.12/808,213.75
  6. Step 6: Final answer
    x = 538,223.10

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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.