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Finding the Fourth Proportional to 507,608.09, 700,499.18 and 281,253.59

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Solution

The fourth proportional to 507,608.09, 700,499.18 and 281,253.59 is: 388,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,608.09 : 700,499.18 = 281,253.59 : x
  2. Step 2: Convert to fraction form
    507,608.09/700,499.18 = 281,253.59/x
  3. Step 3: Cross multiply
    507,608.09x = 700,499.18 × 281,253.59
  4. Step 4: Simplify right side
    507,608.09x = 197,017,906,885.16
  5. Step 5: Solve for x
    x = 197,017,906,885.16/507,608.09
  6. Step 6: Final answer
    x = 388,129.96

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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.