Home / 772,063.68-1,158,039.72-239,571.12

Finding the Fourth Proportional to 772,063.68, 1,158,039.72 and 239,571.12

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Solution

The fourth proportional to 772,063.68, 1,158,039.72 and 239,571.12 is: 359,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,063.68 : 1,158,039.72 = 239,571.12 : x
  2. Step 2: Convert to fraction form
    772,063.68/1,158,039.72 = 239,571.12/x
  3. Step 3: Cross multiply
    772,063.68x = 1,158,039.72 × 239,571.12
  4. Step 4: Simplify right side
    772,063.68x = 277,432,872,724.89
  5. Step 5: Solve for x
    x = 277,432,872,724.89/772,063.68
  6. Step 6: Final answer
    x = 359,339.37

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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.