Home / 2,638,436.48-3,957,664.08-643,892.48

Finding the Fourth Proportional to 2,638,436.48, 3,957,664.08 and 643,892.48

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Solution

The fourth proportional to 2,638,436.48, 3,957,664.08 and 643,892.48 is: 965,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,436.48 : 3,957,664.08 = 643,892.48 : x
  2. Step 2: Convert to fraction form
    2,638,436.48/3,957,664.08 = 643,892.48/x
  3. Step 3: Cross multiply
    2,638,436.48x = 3,957,664.08 × 643,892.48
  4. Step 4: Simplify right side
    2,638,436.48x = 2,548,310,139,478.12
  5. Step 5: Solve for x
    x = 2,548,310,139,478.12/2,638,436.48
  6. Step 6: Final answer
    x = 965,841.00

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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.