Home / 808,860.60-1,212,707.70-528,535.80

Finding the Fourth Proportional to 808,860.60, 1,212,707.70 and 528,535.80

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Solution

The fourth proportional to 808,860.60, 1,212,707.70 and 528,535.80 is: 792,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,860.60 : 1,212,707.70 = 528,535.80 : x
  2. Step 2: Convert to fraction form
    808,860.60/1,212,707.70 = 528,535.80/x
  3. Step 3: Cross multiply
    808,860.60x = 1,212,707.70 × 528,535.80
  4. Step 4: Simplify right side
    808,860.60x = 640,959,434,385.66
  5. Step 5: Solve for x
    x = 640,959,434,385.66/808,860.60
  6. Step 6: Final answer
    x = 792,422.62

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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.