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Finding the Fourth Proportional to 515,052.62, 710,759.51 and 285,606.25

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Solution

The fourth proportional to 515,052.62, 710,759.51 and 285,606.25 is: 394,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,052.62 : 710,759.51 = 285,606.25 : x
  2. Step 2: Convert to fraction form
    515,052.62/710,759.51 = 285,606.25/x
  3. Step 3: Cross multiply
    515,052.62x = 710,759.51 × 285,606.25
  4. Step 4: Simplify right side
    515,052.62x = 202,997,360,167.05
  5. Step 5: Solve for x
    x = 202,997,360,167.05/515,052.62
  6. Step 6: Final answer
    x = 394,129.36

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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.