Home / 1,890,712.07-2,609,190.78-1,031,290.79

Finding the Fourth Proportional to 1,890,712.07, 2,609,190.78 and 1,031,290.79

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Solution

The fourth proportional to 1,890,712.07, 2,609,190.78 and 1,031,290.79 is: 1,423,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,712.07 : 2,609,190.78 = 1,031,290.79 : x
  2. Step 2: Convert to fraction form
    1,890,712.07/2,609,190.78 = 1,031,290.79/x
  3. Step 3: Cross multiply
    1,890,712.07x = 2,609,190.78 × 1,031,290.79
  4. Step 4: Simplify right side
    1,890,712.07x = 2,690,834,409,654.43
  5. Step 5: Solve for x
    x = 2,690,834,409,654.43/1,890,712.07
  6. Step 6: Final answer
    x = 1,423,185.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.