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Finding the Fourth Proportional to 537,874.40, 806,811.60 and 479,813.60

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Solution

The fourth proportional to 537,874.40, 806,811.60 and 479,813.60 is: 719,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,874.40 : 806,811.60 = 479,813.60 : x
  2. Step 2: Convert to fraction form
    537,874.40/806,811.60 = 479,813.60/x
  3. Step 3: Cross multiply
    537,874.40x = 806,811.60 × 479,813.60
  4. Step 4: Simplify right side
    537,874.40x = 387,119,178,317.76
  5. Step 5: Solve for x
    x = 387,119,178,317.76/537,874.40
  6. Step 6: Final answer
    x = 719,720.40

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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.