Home / 912,963.60-1,369,445.40-281,876.40

Finding the Fourth Proportional to 912,963.60, 1,369,445.40 and 281,876.40

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Solution

The fourth proportional to 912,963.60, 1,369,445.40 and 281,876.40 is: 422,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,963.60 : 1,369,445.40 = 281,876.40 : x
  2. Step 2: Convert to fraction form
    912,963.60/1,369,445.40 = 281,876.40/x
  3. Step 3: Cross multiply
    912,963.60x = 1,369,445.40 × 281,876.40
  4. Step 4: Simplify right side
    912,963.60x = 386,014,339,348.56
  5. Step 5: Solve for x
    x = 386,014,339,348.56/912,963.60
  6. Step 6: Final answer
    x = 422,814.60

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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.