Home / 493,309.51-739,664.62-193,430.81

Finding the Fourth Proportional to 493,309.51, 739,664.62 and 193,430.81

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Solution

The fourth proportional to 493,309.51, 739,664.62 and 193,430.81 is: 290,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,309.51 : 739,664.62 = 193,430.81 : x
  2. Step 2: Convert to fraction form
    493,309.51/739,664.62 = 193,430.81/x
  3. Step 3: Cross multiply
    493,309.51x = 739,664.62 × 193,430.81
  4. Step 4: Simplify right side
    493,309.51x = 143,073,921,909.47
  5. Step 5: Solve for x
    x = 143,073,921,909.47/493,309.51
  6. Step 6: Final answer
    x = 290,028.72

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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.