Home / 1,413,589.30-2,120,374.22-572,128.90

Finding the Fourth Proportional to 1,413,589.30, 2,120,374.22 and 572,128.90

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Solution

The fourth proportional to 1,413,589.30, 2,120,374.22 and 572,128.90 is: 858,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,589.30 : 2,120,374.22 = 572,128.90 : x
  2. Step 2: Convert to fraction form
    1,413,589.30/2,120,374.22 = 572,128.90/x
  3. Step 3: Cross multiply
    1,413,589.30x = 2,120,374.22 × 572,128.90
  4. Step 4: Simplify right side
    1,413,589.30x = 1,213,127,370,076.96
  5. Step 5: Solve for x
    x = 1,213,127,370,076.96/1,413,589.30
  6. Step 6: Final answer
    x = 858,189.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.