Home / 2,788,420.10-4,181,792.55-991,067.30

Finding the Fourth Proportional to 2,788,420.10, 4,181,792.55 and 991,067.30

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Solution

The fourth proportional to 2,788,420.10, 4,181,792.55 and 991,067.30 is: 1,486,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,420.10 : 4,181,792.55 = 991,067.30 : x
  2. Step 2: Convert to fraction form
    2,788,420.10/4,181,792.55 = 991,067.30/x
  3. Step 3: Cross multiply
    2,788,420.10x = 4,181,792.55 × 991,067.30
  4. Step 4: Simplify right side
    2,788,420.10x = 4,144,437,851,688.62
  5. Step 5: Solve for x
    x = 4,144,437,851,688.62/2,788,420.10
  6. Step 6: Final answer
    x = 1,486,303.25

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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.