Home / 858,667.13-1,288,149.13-290,052.34

Finding the Fourth Proportional to 858,667.13, 1,288,149.13 and 290,052.34

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Solution

The fourth proportional to 858,667.13, 1,288,149.13 and 290,052.34 is: 435,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,667.13 : 1,288,149.13 = 290,052.34 : x
  2. Step 2: Convert to fraction form
    858,667.13/1,288,149.13 = 290,052.34/x
  3. Step 3: Cross multiply
    858,667.13x = 1,288,149.13 × 290,052.34
  4. Step 4: Simplify right side
    858,667.13x = 373,630,672,181.95
  5. Step 5: Solve for x
    x = 373,630,672,181.95/858,667.13
  6. Step 6: Final answer
    x = 435,128.65

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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.