Home / 1,178,874.48-1,768,656.78-380,139.96

Finding the Fourth Proportional to 1,178,874.48, 1,768,656.78 and 380,139.96

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Solution

The fourth proportional to 1,178,874.48, 1,768,656.78 and 380,139.96 is: 570,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,874.48 : 1,768,656.78 = 380,139.96 : x
  2. Step 2: Convert to fraction form
    1,178,874.48/1,768,656.78 = 380,139.96/x
  3. Step 3: Cross multiply
    1,178,874.48x = 1,768,656.78 × 380,139.96
  4. Step 4: Simplify right side
    1,178,874.48x = 672,337,117,602.93
  5. Step 5: Solve for x
    x = 672,337,117,602.93/1,178,874.48
  6. Step 6: Final answer
    x = 570,321.21

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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.