Home / 1,059,911.58-1,589,868.48-428,830.86

Finding the Fourth Proportional to 1,059,911.58, 1,589,868.48 and 428,830.86

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Solution

The fourth proportional to 1,059,911.58, 1,589,868.48 and 428,830.86 is: 643,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,911.58 : 1,589,868.48 = 428,830.86 : x
  2. Step 2: Convert to fraction form
    1,059,911.58/1,589,868.48 = 428,830.86/x
  3. Step 3: Cross multiply
    1,059,911.58x = 1,589,868.48 × 428,830.86
  4. Step 4: Simplify right side
    1,059,911.58x = 681,784,667,565.29
  5. Step 5: Solve for x
    x = 681,784,667,565.29/1,059,911.58
  6. Step 6: Final answer
    x = 643,246.74

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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.