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Finding the Fourth Proportional to 507,668.85, 700,581.56 and 281,314.35

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Solution

The fourth proportional to 507,668.85, 700,581.56 and 281,314.35 is: 388,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,668.85 : 700,581.56 = 281,314.35 : x
  2. Step 2: Convert to fraction form
    507,668.85/700,581.56 = 281,314.35/x
  3. Step 3: Cross multiply
    507,668.85x = 700,581.56 × 281,314.35
  4. Step 4: Simplify right side
    507,668.85x = 197,083,644,766.81
  5. Step 5: Solve for x
    x = 197,083,644,766.81/507,668.85
  6. Step 6: Final answer
    x = 388,213.00

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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.