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Finding the Fourth Proportional to 507,367.38, 700,128.45 and 281,008.02

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Solution

The fourth proportional to 507,367.38, 700,128.45 and 281,008.02 is: 387,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,367.38 : 700,128.45 = 281,008.02 : x
  2. Step 2: Convert to fraction form
    507,367.38/700,128.45 = 281,008.02/x
  3. Step 3: Cross multiply
    507,367.38x = 700,128.45 × 281,008.02
  4. Step 4: Simplify right side
    507,367.38x = 196,741,709,480.17
  5. Step 5: Solve for x
    x = 196,741,709,480.17/507,367.38
  6. Step 6: Final answer
    x = 387,769.73

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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.