Home / 2,688,780.80-4,032,004.80-890,969.60

Finding the Fourth Proportional to 2,688,780.80, 4,032,004.80 and 890,969.60

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Solution

The fourth proportional to 2,688,780.80, 4,032,004.80 and 890,969.60 is: 1,336,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,780.80 : 4,032,004.80 = 890,969.60 : x
  2. Step 2: Convert to fraction form
    2,688,780.80/4,032,004.80 = 890,969.60/x
  3. Step 3: Cross multiply
    2,688,780.80x = 4,032,004.80 × 890,969.60
  4. Step 4: Simplify right side
    2,688,780.80x = 3,592,393,703,854.08
  5. Step 5: Solve for x
    x = 3,592,393,703,854.08/2,688,780.80
  6. Step 6: Final answer
    x = 1,336,067.90

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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.