Home / 1,315,488.52-1,815,374.12-711,876.52

Finding the Fourth Proportional to 1,315,488.52, 1,815,374.12 and 711,876.52

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Solution

The fourth proportional to 1,315,488.52, 1,815,374.12 and 711,876.52 is: 982,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,488.52 : 1,815,374.12 = 711,876.52 : x
  2. Step 2: Convert to fraction form
    1,315,488.52/1,815,374.12 = 711,876.52/x
  3. Step 3: Cross multiply
    1,315,488.52x = 1,815,374.12 × 711,876.52
  4. Step 4: Simplify right side
    1,315,488.52x = 1,292,322,211,043.66
  5. Step 5: Solve for x
    x = 1,292,322,211,043.66/1,315,488.52
  6. Step 6: Final answer
    x = 982,389.58

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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.