Home / 1,178,994.05-1,768,864.73-420,818.71

Finding the Fourth Proportional to 1,178,994.05, 1,768,864.73 and 420,818.71

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Solution

The fourth proportional to 1,178,994.05, 1,768,864.73 and 420,818.71 is: 631,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,994.05 : 1,768,864.73 = 420,818.71 : x
  2. Step 2: Convert to fraction form
    1,178,994.05/1,768,864.73 = 420,818.71/x
  3. Step 3: Cross multiply
    1,178,994.05x = 1,768,864.73 × 420,818.71
  4. Step 4: Simplify right side
    1,178,994.05x = 744,371,371,739.01
  5. Step 5: Solve for x
    x = 744,371,371,739.01/1,178,994.05
  6. Step 6: Final answer
    x = 631,361.43

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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.