Home / 948,564.73-1,308,991.62-518,835.70

Finding the Fourth Proportional to 948,564.73, 1,308,991.62 and 518,835.70

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Solution

The fourth proportional to 948,564.73, 1,308,991.62 and 518,835.70 is: 715,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,564.73 : 1,308,991.62 = 518,835.70 : x
  2. Step 2: Convert to fraction form
    948,564.73/1,308,991.62 = 518,835.70/x
  3. Step 3: Cross multiply
    948,564.73x = 1,308,991.62 × 518,835.70
  4. Step 4: Simplify right side
    948,564.73x = 679,151,583,456.83
  5. Step 5: Solve for x
    x = 679,151,583,456.83/948,564.73
  6. Step 6: Final answer
    x = 715,978.11

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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.