Home / 1,109,909.10-1,664,863.65-684,756.30

Finding the Fourth Proportional to 1,109,909.10, 1,664,863.65 and 684,756.30

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Solution

The fourth proportional to 1,109,909.10, 1,664,863.65 and 684,756.30 is: 1,027,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,909.10 : 1,664,863.65 = 684,756.30 : x
  2. Step 2: Convert to fraction form
    1,109,909.10/1,664,863.65 = 684,756.30/x
  3. Step 3: Cross multiply
    1,109,909.10x = 1,664,863.65 × 684,756.30
  4. Step 4: Simplify right side
    1,109,909.10x = 1,140,025,872,978.50
  5. Step 5: Solve for x
    x = 1,140,025,872,978.50/1,109,909.10
  6. Step 6: Final answer
    x = 1,027,134.45

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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.