Home / 768,805.05-1,153,317.63-236,370.78

Finding the Fourth Proportional to 768,805.05, 1,153,317.63 and 236,370.78

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Solution

The fourth proportional to 768,805.05, 1,153,317.63 and 236,370.78 is: 354,590.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,805.05 : 1,153,317.63 = 236,370.78 : x
  2. Step 2: Convert to fraction form
    768,805.05/1,153,317.63 = 236,370.78/x
  3. Step 3: Cross multiply
    768,805.05x = 1,153,317.63 × 236,370.78
  4. Step 4: Simplify right side
    768,805.05x = 272,610,587,790.85
  5. Step 5: Solve for x
    x = 272,610,587,790.85/768,805.05
  6. Step 6: Final answer
    x = 354,590.01

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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.