Home / 816,136.80-1,224,205.20-808,263.60

Finding the Fourth Proportional to 816,136.80, 1,224,205.20 and 808,263.60

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Solution

The fourth proportional to 816,136.80, 1,224,205.20 and 808,263.60 is: 1,212,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,136.80 : 1,224,205.20 = 808,263.60 : x
  2. Step 2: Convert to fraction form
    816,136.80/1,224,205.20 = 808,263.60/x
  3. Step 3: Cross multiply
    816,136.80x = 1,224,205.20 × 808,263.60
  4. Step 4: Simplify right side
    816,136.80x = 989,480,502,090.72
  5. Step 5: Solve for x
    x = 989,480,502,090.72/816,136.80
  6. Step 6: Final answer
    x = 1,212,395.40

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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.