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Finding the Fourth Proportional to 537,872.40, 806,808.60 and 479,811.60

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Solution

The fourth proportional to 537,872.40, 806,808.60 and 479,811.60 is: 719,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,872.40 : 806,808.60 = 479,811.60 : x
  2. Step 2: Convert to fraction form
    537,872.40/806,808.60 = 479,811.60/x
  3. Step 3: Cross multiply
    537,872.40x = 806,808.60 × 479,811.60
  4. Step 4: Simplify right side
    537,872.40x = 387,116,125,259.76
  5. Step 5: Solve for x
    x = 387,116,125,259.76/537,872.40
  6. Step 6: Final answer
    x = 719,717.40

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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.