Home / 2,638,593.40-3,957,890.10-865,665.40

Finding the Fourth Proportional to 2,638,593.40, 3,957,890.10 and 865,665.40

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Solution

The fourth proportional to 2,638,593.40, 3,957,890.10 and 865,665.40 is: 1,298,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,593.40 : 3,957,890.10 = 865,665.40 : x
  2. Step 2: Convert to fraction form
    2,638,593.40/3,957,890.10 = 865,665.40/x
  3. Step 3: Cross multiply
    2,638,593.40x = 3,957,890.10 × 865,665.40
  4. Step 4: Simplify right side
    2,638,593.40x = 3,426,208,516,572.54
  5. Step 5: Solve for x
    x = 3,426,208,516,572.54/2,638,593.40
  6. Step 6: Final answer
    x = 1,298,498.10

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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.