Home / 856,588.80-1,284,883.20-768,115.20

Finding the Fourth Proportional to 856,588.80, 1,284,883.20 and 768,115.20

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Solution

The fourth proportional to 856,588.80, 1,284,883.20 and 768,115.20 is: 1,152,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,588.80 : 1,284,883.20 = 768,115.20 : x
  2. Step 2: Convert to fraction form
    856,588.80/1,284,883.20 = 768,115.20/x
  3. Step 3: Cross multiply
    856,588.80x = 1,284,883.20 × 768,115.20
  4. Step 4: Simplify right side
    856,588.80x = 986,938,316,144.64
  5. Step 5: Solve for x
    x = 986,938,316,144.64/856,588.80
  6. Step 6: Final answer
    x = 1,152,172.80

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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.