Home / 698,624.48-964,203.89-392,726.06

Finding the Fourth Proportional to 698,624.48, 964,203.89 and 392,726.06

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Solution

The fourth proportional to 698,624.48, 964,203.89 and 392,726.06 is: 542,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,624.48 : 964,203.89 = 392,726.06 : x
  2. Step 2: Convert to fraction form
    698,624.48/964,203.89 = 392,726.06/x
  3. Step 3: Cross multiply
    698,624.48x = 964,203.89 × 392,726.06
  4. Step 4: Simplify right side
    698,624.48x = 378,667,994,756.37
  5. Step 5: Solve for x
    x = 378,667,994,756.37/698,624.48
  6. Step 6: Final answer
    x = 542,019.36

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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.