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Finding the Fourth Proportional to 489,898.60, 734,847.90 and 174,711.40

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Solution

The fourth proportional to 489,898.60, 734,847.90 and 174,711.40 is: 262,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,898.60 : 734,847.90 = 174,711.40 : x
  2. Step 2: Convert to fraction form
    489,898.60/734,847.90 = 174,711.40/x
  3. Step 3: Cross multiply
    489,898.60x = 734,847.90 × 174,711.40
  4. Step 4: Simplify right side
    489,898.60x = 128,386,305,396.06
  5. Step 5: Solve for x
    x = 128,386,305,396.06/489,898.60
  6. Step 6: Final answer
    x = 262,067.10

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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.