Home / 808,821.60-1,212,649.20-528,496.80

Finding the Fourth Proportional to 808,821.60, 1,212,649.20 and 528,496.80

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Solution

The fourth proportional to 808,821.60, 1,212,649.20 and 528,496.80 is: 792,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,821.60 : 1,212,649.20 = 528,496.80 : x
  2. Step 2: Convert to fraction form
    808,821.60/1,212,649.20 = 528,496.80/x
  3. Step 3: Cross multiply
    808,821.60x = 1,212,649.20 × 528,496.80
  4. Step 4: Simplify right side
    808,821.60x = 640,881,221,722.56
  5. Step 5: Solve for x
    x = 640,881,221,722.56/808,821.60
  6. Step 6: Final answer
    x = 792,364.13

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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.