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Finding the Fourth Proportional to 507,778.60, 700,732.98 and 281,424.10

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Solution

The fourth proportional to 507,778.60, 700,732.98 and 281,424.10 is: 388,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,778.60 : 700,732.98 = 281,424.10 : x
  2. Step 2: Convert to fraction form
    507,778.60/700,732.98 = 281,424.10/x
  3. Step 3: Cross multiply
    507,778.60x = 700,732.98 × 281,424.10
  4. Step 4: Simplify right side
    507,778.60x = 197,203,148,236.82
  5. Step 5: Solve for x
    x = 197,203,148,236.82/507,778.60
  6. Step 6: Final answer
    x = 388,364.43

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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.