Home / 2,911,190.31-4,366,184.04-780,768

Finding the Fourth Proportional to 2,911,190.31, 4,366,184.04 and 780,768

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Solution

The fourth proportional to 2,911,190.31, 4,366,184.04 and 780,768 is: 1,170,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,190.31 : 4,366,184.04 = 780,768 : x
  2. Step 2: Convert to fraction form
    2,911,190.31/4,366,184.04 = 780,768/x
  3. Step 3: Cross multiply
    2,911,190.31x = 4,366,184.04 × 780,768
  4. Step 4: Simplify right side
    2,911,190.31x = 3,408,976,780,542.72
  5. Step 5: Solve for x
    x = 3,408,976,780,542.72/2,911,190.31
  6. Step 6: Final answer
    x = 1,170,990.70

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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.