Home / 528,664.92-728,551.98-518,949.24

Finding the Fourth Proportional to 528,664.92, 728,551.98 and 518,949.24

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Solution

The fourth proportional to 528,664.92, 728,551.98 and 518,949.24 is: 715,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,664.92 : 728,551.98 = 518,949.24 : x
  2. Step 2: Convert to fraction form
    528,664.92/728,551.98 = 518,949.24/x
  3. Step 3: Cross multiply
    528,664.92x = 728,551.98 × 518,949.24
  4. Step 4: Simplify right side
    528,664.92x = 378,081,496,321.50
  5. Step 5: Solve for x
    x = 378,081,496,321.50/528,664.92
  6. Step 6: Final answer
    x = 715,162.82

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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.