Home / 1,109,265.80-1,664,676.30-478,632.20

Finding the Fourth Proportional to 1,109,265.80, 1,664,676.30 and 478,632.20

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Solution

The fourth proportional to 1,109,265.80, 1,664,676.30 and 478,632.20 is: 718,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,265.80 : 1,664,676.30 = 478,632.20 : x
  2. Step 2: Convert to fraction form
    1,109,265.80/1,664,676.30 = 478,632.20/x
  3. Step 3: Cross multiply
    1,109,265.80x = 1,664,676.30 × 478,632.20
  4. Step 4: Simplify right side
    1,109,265.80x = 796,767,679,756.86
  5. Step 5: Solve for x
    x = 796,767,679,756.86/1,109,265.80
  6. Step 6: Final answer
    x = 718,283.82

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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.