Home / 1,315,847.43-1,815,872.18-712,235.43

Finding the Fourth Proportional to 1,315,847.43, 1,815,872.18 and 712,235.43

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Solution

The fourth proportional to 1,315,847.43, 1,815,872.18 and 712,235.43 is: 982,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,847.43 : 1,815,872.18 = 712,235.43 : x
  2. Step 2: Convert to fraction form
    1,315,847.43/1,815,872.18 = 712,235.43/x
  3. Step 3: Cross multiply
    1,315,847.43x = 1,815,872.18 × 712,235.43
  4. Step 4: Simplify right side
    1,315,847.43x = 1,293,328,499,386.16
  5. Step 5: Solve for x
    x = 1,293,328,499,386.16/1,315,847.43
  6. Step 6: Final answer
    x = 982,886.37

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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.