Home / 1,108,997.80-1,664,274.30-478,364.20

Finding the Fourth Proportional to 1,108,997.80, 1,664,274.30 and 478,364.20

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Solution

The fourth proportional to 1,108,997.80, 1,664,274.30 and 478,364.20 is: 717,881.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,997.80 : 1,664,274.30 = 478,364.20 : x
  2. Step 2: Convert to fraction form
    1,108,997.80/1,664,274.30 = 478,364.20/x
  3. Step 3: Cross multiply
    1,108,997.80x = 1,664,274.30 × 478,364.20
  4. Step 4: Simplify right side
    1,108,997.80x = 796,129,244,100.06
  5. Step 5: Solve for x
    x = 796,129,244,100.06/1,108,997.80
  6. Step 6: Final answer
    x = 717,881.72

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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.