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Finding the Fourth Proportional to 522,034.80, 783,635.40 and 487,771.80

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Solution

The fourth proportional to 522,034.80, 783,635.40 and 487,771.80 is: 732,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,034.80 : 783,635.40 = 487,771.80 : x
  2. Step 2: Convert to fraction form
    522,034.80/783,635.40 = 487,771.80/x
  3. Step 3: Cross multiply
    522,034.80x = 783,635.40 × 487,771.80
  4. Step 4: Simplify right side
    522,034.80x = 382,235,249,601.72
  5. Step 5: Solve for x
    x = 382,235,249,601.72/522,034.80
  6. Step 6: Final answer
    x = 732,202.62

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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.