Home / 856,902.52-1,284,086.70-808,974.40

Finding the Fourth Proportional to 856,902.52, 1,284,086.70 and 808,974.40

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Solution

The fourth proportional to 856,902.52, 1,284,086.70 and 808,974.40 is: 1,212,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,902.52 : 1,284,086.70 = 808,974.40 : x
  2. Step 2: Convert to fraction form
    856,902.52/1,284,086.70 = 808,974.40/x
  3. Step 3: Cross multiply
    856,902.52x = 1,284,086.70 × 808,974.40
  4. Step 4: Simplify right side
    856,902.52x = 1,038,793,267,680.48
  5. Step 5: Solve for x
    x = 1,038,793,267,680.48/856,902.52
  6. Step 6: Final answer
    x = 1,212,265.39

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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.