Home / 824,742.78-1,138,173.06-786,951.42

Finding the Fourth Proportional to 824,742.78, 1,138,173.06 and 786,951.42

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Solution

The fourth proportional to 824,742.78, 1,138,173.06 and 786,951.42 is: 1,086,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,742.78 : 1,138,173.06 = 786,951.42 : x
  2. Step 2: Convert to fraction form
    824,742.78/1,138,173.06 = 786,951.42/x
  3. Step 3: Cross multiply
    824,742.78x = 1,138,173.06 × 786,951.42
  4. Step 4: Simplify right side
    824,742.78x = 895,686,905,772.75
  5. Step 5: Solve for x
    x = 895,686,905,772.75/824,742.78
  6. Step 6: Final answer
    x = 1,086,019.70

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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.