Home / 808,627.60-1,212,358.20-528,302.80

Finding the Fourth Proportional to 808,627.60, 1,212,358.20 and 528,302.80

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Solution

The fourth proportional to 808,627.60, 1,212,358.20 and 528,302.80 is: 792,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,627.60 : 1,212,358.20 = 528,302.80 : x
  2. Step 2: Convert to fraction form
    808,627.60/1,212,358.20 = 528,302.80/x
  3. Step 3: Cross multiply
    808,627.60x = 1,212,358.20 × 528,302.80
  4. Step 4: Simplify right side
    808,627.60x = 640,492,231,662.96
  5. Step 5: Solve for x
    x = 640,492,231,662.96/808,627.60
  6. Step 6: Final answer
    x = 792,073.18

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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.