Home / 865,719.60-1,298,579.40-567,121.20

Finding the Fourth Proportional to 865,719.60, 1,298,579.40 and 567,121.20

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Solution

The fourth proportional to 865,719.60, 1,298,579.40 and 567,121.20 is: 850,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,719.60 : 1,298,579.40 = 567,121.20 : x
  2. Step 2: Convert to fraction form
    865,719.60/1,298,579.40 = 567,121.20/x
  3. Step 3: Cross multiply
    865,719.60x = 1,298,579.40 × 567,121.20
  4. Step 4: Simplify right side
    865,719.60x = 736,451,907,623.28
  5. Step 5: Solve for x
    x = 736,451,907,623.28/865,719.60
  6. Step 6: Final answer
    x = 850,681.80

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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.