Home / 1,891,120-2,609,751.92-1,031,698.40

Finding the Fourth Proportional to 1,891,120, 2,609,751.92 and 1,031,698.40

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Solution

The fourth proportional to 1,891,120, 2,609,751.92 and 1,031,698.40 is: 1,423,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,120 : 2,609,751.92 = 1,031,698.40 : x
  2. Step 2: Convert to fraction form
    1,891,120/2,609,751.92 = 1,031,698.40/x
  3. Step 3: Cross multiply
    1,891,120x = 2,609,751.92 × 1,031,698.40
  4. Step 4: Simplify right side
    1,891,120x = 2,692,476,880,260.93
  5. Step 5: Solve for x
    x = 2,692,476,880,260.93/1,891,120
  6. Step 6: Final answer
    x = 1,423,747.24

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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.