Home / 1,383,613.80-1,909,096.74-840,035.76

Finding the Fourth Proportional to 1,383,613.80, 1,909,096.74 and 840,035.76

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Solution

The fourth proportional to 1,383,613.80, 1,909,096.74 and 840,035.76 is: 1,159,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,613.80 : 1,909,096.74 = 840,035.76 : x
  2. Step 2: Convert to fraction form
    1,383,613.80/1,909,096.74 = 840,035.76/x
  3. Step 3: Cross multiply
    1,383,613.80x = 1,909,096.74 × 840,035.76
  4. Step 4: Simplify right side
    1,383,613.80x = 1,603,709,530,899.42
  5. Step 5: Solve for x
    x = 1,603,709,530,899.42/1,383,613.80
  6. Step 6: Final answer
    x = 1,159,073.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.