Home / 1,920,163.32-2,880,234.60-782,921.16

Finding the Fourth Proportional to 1,920,163.32, 2,880,234.60 and 782,921.16

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Solution

The fourth proportional to 1,920,163.32, 2,880,234.60 and 782,921.16 is: 1,174,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,163.32 : 2,880,234.60 = 782,921.16 : x
  2. Step 2: Convert to fraction form
    1,920,163.32/2,880,234.60 = 782,921.16/x
  3. Step 3: Cross multiply
    1,920,163.32x = 2,880,234.60 × 782,921.16
  4. Step 4: Simplify right side
    1,920,163.32x = 2,254,996,614,104.14
  5. Step 5: Solve for x
    x = 2,254,996,614,104.14/1,920,163.32
  6. Step 6: Final answer
    x = 1,174,377.51

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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.