Home / 2,778,698.47-4,167,464.50-783,687.91

Finding the Fourth Proportional to 2,778,698.47, 4,167,464.50 and 783,687.91

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Solution

The fourth proportional to 2,778,698.47, 4,167,464.50 and 783,687.91 is: 1,175,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,698.47 : 4,167,464.50 = 783,687.91 : x
  2. Step 2: Convert to fraction form
    2,778,698.47/4,167,464.50 = 783,687.91/x
  3. Step 3: Cross multiply
    2,778,698.47x = 4,167,464.50 × 783,687.91
  4. Step 4: Simplify right side
    2,778,698.47x = 3,265,991,533,585.53
  5. Step 5: Solve for x
    x = 3,265,991,533,585.53/2,778,698.47
  6. Step 6: Final answer
    x = 1,175,367.38

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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.