Home / 407,022.05-609,859.14-140,634.51

Finding the Fourth Proportional to 407,022.05, 609,859.14 and 140,634.51

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Solution

The fourth proportional to 407,022.05, 609,859.14 and 140,634.51 is: 210,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,022.05 : 609,859.14 = 140,634.51 : x
  2. Step 2: Convert to fraction form
    407,022.05/609,859.14 = 140,634.51/x
  3. Step 3: Cross multiply
    407,022.05x = 609,859.14 × 140,634.51
  4. Step 4: Simplify right side
    407,022.05x = 85,767,241,322.92
  5. Step 5: Solve for x
    x = 85,767,241,322.92/407,022.05
  6. Step 6: Final answer
    x = 210,718.91

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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.