Home / 1,315,490.52-1,815,376.88-711,878.52

Finding the Fourth Proportional to 1,315,490.52, 1,815,376.88 and 711,878.52

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Solution

The fourth proportional to 1,315,490.52, 1,815,376.88 and 711,878.52 is: 982,392.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,490.52 : 1,815,376.88 = 711,878.52 : x
  2. Step 2: Convert to fraction form
    1,315,490.52/1,815,376.88 = 711,878.52/x
  3. Step 3: Cross multiply
    1,315,490.52x = 1,815,376.88 × 711,878.52
  4. Step 4: Simplify right side
    1,315,490.52x = 1,292,327,806,576.62
  5. Step 5: Solve for x
    x = 1,292,327,806,576.62/1,315,490.52
  6. Step 6: Final answer
    x = 982,392.34

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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.