Home / 1,315,503.52-1,815,394.80-711,891.52

Finding the Fourth Proportional to 1,315,503.52, 1,815,394.80 and 711,891.52

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Solution

The fourth proportional to 1,315,503.52, 1,815,394.80 and 711,891.52 is: 982,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,503.52 : 1,815,394.80 = 711,891.52 : x
  2. Step 2: Convert to fraction form
    1,315,503.52/1,815,394.80 = 711,891.52/x
  3. Step 3: Cross multiply
    1,315,503.52x = 1,815,394.80 × 711,891.52
  4. Step 4: Simplify right side
    1,315,503.52x = 1,292,364,163,572.10
  5. Step 5: Solve for x
    x = 1,292,364,163,572.10/1,315,503.52
  6. Step 6: Final answer
    x = 982,410.27

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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.