Home / 1,722,121.68-2,376,856.86-1,140,319.20

Finding the Fourth Proportional to 1,722,121.68, 2,376,856.86 and 1,140,319.20

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Solution

The fourth proportional to 1,722,121.68, 2,376,856.86 and 1,140,319.20 is: 1,573,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722,121.68 : 2,376,856.86 = 1,140,319.20 : x
  2. Step 2: Convert to fraction form
    1,722,121.68/2,376,856.86 = 1,140,319.20/x
  3. Step 3: Cross multiply
    1,722,121.68x = 2,376,856.86 × 1,140,319.20
  4. Step 4: Simplify right side
    1,722,121.68x = 2,710,375,513,109.71
  5. Step 5: Solve for x
    x = 2,710,375,513,109.71/1,722,121.68
  6. Step 6: Final answer
    x = 1,573,858.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.