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Finding the Fourth Proportional to 522,611.30, 783,722.55 and 207,002.90

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Solution

The fourth proportional to 522,611.30, 783,722.55 and 207,002.90 is: 310,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,611.30 : 783,722.55 = 207,002.90 : x
  2. Step 2: Convert to fraction form
    522,611.30/783,722.55 = 207,002.90/x
  3. Step 3: Cross multiply
    522,611.30x = 783,722.55 × 207,002.90
  4. Step 4: Simplify right side
    522,611.30x = 162,232,840,645.40
  5. Step 5: Solve for x
    x = 162,232,840,645.40/522,611.30
  6. Step 6: Final answer
    x = 310,427.35

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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.