Home / 853,130.90-1,280,137.95-348,062.10

Finding the Fourth Proportional to 853,130.90, 1,280,137.95 and 348,062.10

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Solution

The fourth proportional to 853,130.90, 1,280,137.95 and 348,062.10 is: 522,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,130.90 : 1,280,137.95 = 348,062.10 : x
  2. Step 2: Convert to fraction form
    853,130.90/1,280,137.95 = 348,062.10/x
  3. Step 3: Cross multiply
    853,130.90x = 1,280,137.95 × 348,062.10
  4. Step 4: Simplify right side
    853,130.90x = 445,567,503,166.70
  5. Step 5: Solve for x
    x = 445,567,503,166.70/853,130.90
  6. Step 6: Final answer
    x = 522,273.31

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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.