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Finding the Fourth Proportional to 515,058.32, 710,760.75 and 285,625.01

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Solution

The fourth proportional to 515,058.32, 710,760.75 and 285,625.01 is: 394,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,058.32 : 710,760.75 = 285,625.01 : x
  2. Step 2: Convert to fraction form
    515,058.32/710,760.75 = 285,625.01/x
  3. Step 3: Cross multiply
    515,058.32x = 710,760.75 × 285,625.01
  4. Step 4: Simplify right side
    515,058.32x = 203,011,046,326.36
  5. Step 5: Solve for x
    x = 203,011,046,326.36/515,058.32
  6. Step 6: Final answer
    x = 394,151.57

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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.