Home / 405,876.92-608,822.36-121,501.31

Finding the Fourth Proportional to 405,876.92, 608,822.36 and 121,501.31

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Solution

The fourth proportional to 405,876.92, 608,822.36 and 121,501.31 is: 182,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,876.92 : 608,822.36 = 121,501.31 : x
  2. Step 2: Convert to fraction form
    405,876.92/608,822.36 = 121,501.31/x
  3. Step 3: Cross multiply
    405,876.92x = 608,822.36 × 121,501.31
  4. Step 4: Simplify right side
    405,876.92x = 73,972,710,645.67
  5. Step 5: Solve for x
    x = 73,972,710,645.67/405,876.92
  6. Step 6: Final answer
    x = 182,254.05

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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.