Home / 853,395.61-1,280,088.78-347,954.62

Finding the Fourth Proportional to 853,395.61, 1,280,088.78 and 347,954.62

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Solution

The fourth proportional to 853,395.61, 1,280,088.78 and 347,954.62 is: 521,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,395.61 : 1,280,088.78 = 347,954.62 : x
  2. Step 2: Convert to fraction form
    853,395.61/1,280,088.78 = 347,954.62/x
  3. Step 3: Cross multiply
    853,395.61x = 1,280,088.78 × 347,954.62
  4. Step 4: Simplify right side
    853,395.61x = 445,412,798,610.72
  5. Step 5: Solve for x
    x = 445,412,798,610.72/853,395.61
  6. Step 6: Final answer
    x = 521,930.04

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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.