Home / 752,889.62-1,129,393.63-213,137.16

Finding the Fourth Proportional to 752,889.62, 1,129,393.63 and 213,137.16

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Solution

The fourth proportional to 752,889.62, 1,129,393.63 and 213,137.16 is: 319,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,889.62 : 1,129,393.63 = 213,137.16 : x
  2. Step 2: Convert to fraction form
    752,889.62/1,129,393.63 = 213,137.16/x
  3. Step 3: Cross multiply
    752,889.62x = 1,129,393.63 × 213,137.16
  4. Step 4: Simplify right side
    752,889.62x = 240,715,750,820.29
  5. Step 5: Solve for x
    x = 240,715,750,820.29/752,889.62
  6. Step 6: Final answer
    x = 319,722.50

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1.5x scale

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.