Home / 1,443,055.35-2,164,919.88-418,407.06

Finding the Fourth Proportional to 1,443,055.35, 2,164,919.88 and 418,407.06

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Solution

The fourth proportional to 1,443,055.35, 2,164,919.88 and 418,407.06 is: 627,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,055.35 : 2,164,919.88 = 418,407.06 : x
  2. Step 2: Convert to fraction form
    1,443,055.35/2,164,919.88 = 418,407.06/x
  3. Step 3: Cross multiply
    1,443,055.35x = 2,164,919.88 × 418,407.06
  4. Step 4: Simplify right side
    1,443,055.35x = 905,817,763,695.38
  5. Step 5: Solve for x
    x = 905,817,763,695.38/1,443,055.35
  6. Step 6: Final answer
    x = 627,708.26

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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.