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Finding the Fourth Proportional to 515,016.44, 710,710.38 and 285,572.60

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Solution

The fourth proportional to 515,016.44, 710,710.38 and 285,572.60 is: 394,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,016.44 : 710,710.38 = 285,572.60 : x
  2. Step 2: Convert to fraction form
    515,016.44/710,710.38 = 285,572.60/x
  3. Step 3: Cross multiply
    515,016.44x = 710,710.38 × 285,572.60
  4. Step 4: Simplify right side
    515,016.44x = 202,959,411,063.59
  5. Step 5: Solve for x
    x = 202,959,411,063.59/515,016.44
  6. Step 6: Final answer
    x = 394,083.36

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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.