Home / 854,426.10-1,281,639.15-223,403.70

Finding the Fourth Proportional to 854,426.10, 1,281,639.15 and 223,403.70

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Solution

The fourth proportional to 854,426.10, 1,281,639.15 and 223,403.70 is: 335,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,426.10 : 1,281,639.15 = 223,403.70 : x
  2. Step 2: Convert to fraction form
    854,426.10/1,281,639.15 = 223,403.70/x
  3. Step 3: Cross multiply
    854,426.10x = 1,281,639.15 × 223,403.70
  4. Step 4: Simplify right side
    854,426.10x = 286,322,928,174.86
  5. Step 5: Solve for x
    x = 286,322,928,174.86/854,426.10
  6. Step 6: Final answer
    x = 335,105.55

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1.5x scale

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.