Home / 1,427,730.55-1,970,249.55-815,876.38

Finding the Fourth Proportional to 1,427,730.55, 1,970,249.55 and 815,876.38

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Solution

The fourth proportional to 1,427,730.55, 1,970,249.55 and 815,876.38 is: 1,125,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,730.55 : 1,970,249.55 = 815,876.38 : x
  2. Step 2: Convert to fraction form
    1,427,730.55/1,970,249.55 = 815,876.38/x
  3. Step 3: Cross multiply
    1,427,730.55x = 1,970,249.55 × 815,876.38
  4. Step 4: Simplify right side
    1,427,730.55x = 1,607,480,070,550.63
  5. Step 5: Solve for x
    x = 1,607,480,070,550.63/1,427,730.55
  6. Step 6: Final answer
    x = 1,125,898.77

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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.