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Finding the Fourth Proportional to 521,701.10, 782,551.65 and 521,701.10

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Solution

The fourth proportional to 521,701.10, 782,551.65 and 521,701.10 is: 782,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,701.10 : 782,551.65 = 521,701.10 : x
  2. Step 2: Convert to fraction form
    521,701.10/782,551.65 = 521,701.10/x
  3. Step 3: Cross multiply
    521,701.10x = 782,551.65 × 521,701.10
  4. Step 4: Simplify right side
    521,701.10x = 408,258,056,611.82
  5. Step 5: Solve for x
    x = 408,258,056,611.82/521,701.10
  6. Step 6: Final answer
    x = 782,551.65

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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.