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Finding the Fourth Proportional to 507,813.93, 700,781.09 and 281,459.43

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Solution

The fourth proportional to 507,813.93, 700,781.09 and 281,459.43 is: 388,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,813.93 : 700,781.09 = 281,459.43 : x
  2. Step 2: Convert to fraction form
    507,813.93/700,781.09 = 281,459.43/x
  3. Step 3: Cross multiply
    507,813.93x = 700,781.09 × 281,459.43
  4. Step 4: Simplify right side
    507,813.93x = 197,241,444,738.88
  5. Step 5: Solve for x
    x = 197,241,444,738.88/507,813.93
  6. Step 6: Final answer
    x = 388,412.83

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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.