Home / 515,076.92-772,837.37-278,586.08

Finding the Fourth Proportional to 515,076.92, 772,837.37 and 278,586.08

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Solution

The fourth proportional to 515,076.92, 772,837.37 and 278,586.08 is: 417,999.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,076.92 : 772,837.37 = 278,586.08 : x
  2. Step 2: Convert to fraction form
    515,076.92/772,837.37 = 278,586.08/x
  3. Step 3: Cross multiply
    515,076.92x = 772,837.37 × 278,586.08
  4. Step 4: Simplify right side
    515,076.92x = 215,301,733,385.81
  5. Step 5: Solve for x
    x = 215,301,733,385.81/515,076.92
  6. Step 6: Final answer
    x = 417,999.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.