Home / 2,688,780.30-4,032,004.05-890,969.10

Finding the Fourth Proportional to 2,688,780.30, 4,032,004.05 and 890,969.10

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Solution

The fourth proportional to 2,688,780.30, 4,032,004.05 and 890,969.10 is: 1,336,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,780.30 : 4,032,004.05 = 890,969.10 : x
  2. Step 2: Convert to fraction form
    2,688,780.30/4,032,004.05 = 890,969.10/x
  3. Step 3: Cross multiply
    2,688,780.30x = 4,032,004.05 × 890,969.10
  4. Step 4: Simplify right side
    2,688,780.30x = 3,592,391,019,624.86
  5. Step 5: Solve for x
    x = 3,592,391,019,624.86/2,688,780.30
  6. Step 6: Final answer
    x = 1,336,067.15

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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.