Home / 715,119.06-1,072,664.52-288,643.56

Finding the Fourth Proportional to 715,119.06, 1,072,664.52 and 288,643.56

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Solution

The fourth proportional to 715,119.06, 1,072,664.52 and 288,643.56 is: 432,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,119.06 : 1,072,664.52 = 288,643.56 : x
  2. Step 2: Convert to fraction form
    715,119.06/1,072,664.52 = 288,643.56/x
  3. Step 3: Cross multiply
    715,119.06x = 1,072,664.52 × 288,643.56
  4. Step 4: Simplify right side
    715,119.06x = 309,617,705,738.49
  5. Step 5: Solve for x
    x = 309,617,705,738.49/715,119.06
  6. Step 6: Final answer
    x = 432,959.66

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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.