Home / 1,128,119.35-1,692,695.77-488,618.68

Finding the Fourth Proportional to 1,128,119.35, 1,692,695.77 and 488,618.68

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Solution

The fourth proportional to 1,128,119.35, 1,692,695.77 and 488,618.68 is: 733,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,119.35 : 1,692,695.77 = 488,618.68 : x
  2. Step 2: Convert to fraction form
    1,128,119.35/1,692,695.77 = 488,618.68/x
  3. Step 3: Cross multiply
    1,128,119.35x = 1,692,695.77 × 488,618.68
  4. Step 4: Simplify right side
    1,128,119.35x = 827,082,767,325.70
  5. Step 5: Solve for x
    x = 827,082,767,325.70/1,128,119.35
  6. Step 6: Final answer
    x = 733,151.83

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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.