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Finding the Fourth Proportional to 515,010.02, 710,722.34 and 285,576.96

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Solution

The fourth proportional to 515,010.02, 710,722.34 and 285,576.96 is: 394,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,010.02 : 710,722.34 = 285,576.96 : x
  2. Step 2: Convert to fraction form
    515,010.02/710,722.34 = 285,576.96/x
  3. Step 3: Cross multiply
    515,010.02x = 710,722.34 × 285,576.96
  4. Step 4: Simplify right side
    515,010.02x = 202,965,927,569.52
  5. Step 5: Solve for x
    x = 202,965,927,569.52/515,010.02
  6. Step 6: Final answer
    x = 394,100.93

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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.