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Finding the Fourth Proportional to 507,663.38, 700,575.46 and 281,308.88

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Solution

The fourth proportional to 507,663.38, 700,575.46 and 281,308.88 is: 388,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,663.38 : 700,575.46 = 281,308.88 : x
  2. Step 2: Convert to fraction form
    507,663.38/700,575.46 = 281,308.88/x
  3. Step 3: Cross multiply
    507,663.38x = 700,575.46 × 281,308.88
  4. Step 4: Simplify right side
    507,663.38x = 197,078,098,008.09
  5. Step 5: Solve for x
    x = 197,078,098,008.09/507,663.38
  6. Step 6: Final answer
    x = 388,206.25

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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.