Home / 1,443,055.85-2,164,920.64-418,407.56

Finding the Fourth Proportional to 1,443,055.85, 2,164,920.64 and 418,407.56

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Solution

The fourth proportional to 1,443,055.85, 2,164,920.64 and 418,407.56 is: 627,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,055.85 : 2,164,920.64 = 418,407.56 : x
  2. Step 2: Convert to fraction form
    1,443,055.85/2,164,920.64 = 418,407.56/x
  3. Step 3: Cross multiply
    1,443,055.85x = 2,164,920.64 × 418,407.56
  4. Step 4: Simplify right side
    1,443,055.85x = 905,819,160,484.00
  5. Step 5: Solve for x
    x = 905,819,160,484.00/1,443,055.85
  6. Step 6: Final answer
    x = 627,709.01

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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.