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Finding the Fourth Proportional to 537,811.60, 806,717.40 and 451,206.40

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Solution

The fourth proportional to 537,811.60, 806,717.40 and 451,206.40 is: 676,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,811.60 : 806,717.40 = 451,206.40 : x
  2. Step 2: Convert to fraction form
    537,811.60/806,717.40 = 451,206.40/x
  3. Step 3: Cross multiply
    537,811.60x = 806,717.40 × 451,206.40
  4. Step 4: Simplify right side
    537,811.60x = 363,996,053,871.36
  5. Step 5: Solve for x
    x = 363,996,053,871.36/537,811.60
  6. Step 6: Final answer
    x = 676,809.60

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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.