Home / 2,078,658.20-3,117,987.30-1,277,341.40

Finding the Fourth Proportional to 2,078,658.20, 3,117,987.30 and 1,277,341.40

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Solution

The fourth proportional to 2,078,658.20, 3,117,987.30 and 1,277,341.40 is: 1,916,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,658.20 : 3,117,987.30 = 1,277,341.40 : x
  2. Step 2: Convert to fraction form
    2,078,658.20/3,117,987.30 = 1,277,341.40/x
  3. Step 3: Cross multiply
    2,078,658.20x = 3,117,987.30 × 1,277,341.40
  4. Step 4: Simplify right side
    2,078,658.20x = 3,982,734,262,964.22
  5. Step 5: Solve for x
    x = 3,982,734,262,964.22/2,078,658.20
  6. Step 6: Final answer
    x = 1,916,012.10

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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.