Home / 808,625.60-1,212,355.20-528,300.80

Finding the Fourth Proportional to 808,625.60, 1,212,355.20 and 528,300.80

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Solution

The fourth proportional to 808,625.60, 1,212,355.20 and 528,300.80 is: 792,070.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,625.60 : 1,212,355.20 = 528,300.80 : x
  2. Step 2: Convert to fraction form
    808,625.60/1,212,355.20 = 528,300.80/x
  3. Step 3: Cross multiply
    808,625.60x = 1,212,355.20 × 528,300.80
  4. Step 4: Simplify right side
    808,625.60x = 640,488,222,044.16
  5. Step 5: Solve for x
    x = 640,488,222,044.16/808,625.60
  6. Step 6: Final answer
    x = 792,070.18

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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.