Home / 1,315,586.50-1,815,509.40-711,974.50

Finding the Fourth Proportional to 1,315,586.50, 1,815,509.40 and 711,974.50

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Solution

The fourth proportional to 1,315,586.50, 1,815,509.40 and 711,974.50 is: 982,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,586.50 : 1,815,509.40 = 711,974.50 : x
  2. Step 2: Convert to fraction form
    1,315,586.50/1,815,509.40 = 711,974.50/x
  3. Step 3: Cross multiply
    1,315,586.50x = 1,815,509.40 × 711,974.50
  4. Step 4: Simplify right side
    1,315,586.50x = 1,292,596,397,310.30
  5. Step 5: Solve for x
    x = 1,292,596,397,310.30/1,315,586.50
  6. Step 6: Final answer
    x = 982,524.83

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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.