Home / 2,478,227.10-3,420,012.27-1,390,579.08

Finding the Fourth Proportional to 2,478,227.10, 3,420,012.27 and 1,390,579.08

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Solution

The fourth proportional to 2,478,227.10, 3,420,012.27 and 1,390,579.08 is: 1,919,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,227.10 : 3,420,012.27 = 1,390,579.08 : x
  2. Step 2: Convert to fraction form
    2,478,227.10/3,420,012.27 = 1,390,579.08/x
  3. Step 3: Cross multiply
    2,478,227.10x = 3,420,012.27 × 1,390,579.08
  4. Step 4: Simplify right side
    2,478,227.10x = 4,755,797,508,394.94
  5. Step 5: Solve for x
    x = 4,755,797,508,394.94/2,478,227.10
  6. Step 6: Final answer
    x = 1,919,032.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.