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Finding the Fourth Proportional to 507,770.60, 700,721.97 and 281,416.10

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Solution

The fourth proportional to 507,770.60, 700,721.97 and 281,416.10 is: 388,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,770.60 : 700,721.97 = 281,416.10 : x
  2. Step 2: Convert to fraction form
    507,770.60/700,721.97 = 281,416.10/x
  3. Step 3: Cross multiply
    507,770.60x = 700,721.97 × 281,416.10
  4. Step 4: Simplify right side
    507,770.60x = 197,194,443,981.72
  5. Step 5: Solve for x
    x = 197,194,443,981.72/507,770.60
  6. Step 6: Final answer
    x = 388,353.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.