Home / 1,110,418.80-1,665,628.20-478,892.40

Finding the Fourth Proportional to 1,110,418.80, 1,665,628.20 and 478,892.40

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Solution

The fourth proportional to 1,110,418.80, 1,665,628.20 and 478,892.40 is: 718,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,418.80 : 1,665,628.20 = 478,892.40 : x
  2. Step 2: Convert to fraction form
    1,110,418.80/1,665,628.20 = 478,892.40/x
  3. Step 3: Cross multiply
    1,110,418.80x = 1,665,628.20 × 478,892.40
  4. Step 4: Simplify right side
    1,110,418.80x = 797,656,686,205.68
  5. Step 5: Solve for x
    x = 797,656,686,205.68/1,110,418.80
  6. Step 6: Final answer
    x = 718,338.60

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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.