Home / 515,124.12-710,846.58-285,663.42

Finding the Fourth Proportional to 515,124.12, 710,846.58 and 285,663.42

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Solution

The fourth proportional to 515,124.12, 710,846.58 and 285,663.42 is: 394,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,124.12 : 710,846.58 = 285,663.42 : x
  2. Step 2: Convert to fraction form
    515,124.12/710,846.58 = 285,663.42/x
  3. Step 3: Cross multiply
    515,124.12x = 710,846.58 × 285,663.42
  4. Step 4: Simplify right side
    515,124.12x = 203,062,865,138.10
  5. Step 5: Solve for x
    x = 203,062,865,138.10/515,124.12
  6. Step 6: Final answer
    x = 394,201.82

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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.