Home / 887,505.21-1,331,479.25-256,419.02

Finding the Fourth Proportional to 887,505.21, 1,331,479.25 and 256,419.02

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Solution

The fourth proportional to 887,505.21, 1,331,479.25 and 256,419.02 is: 384,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,505.21 : 1,331,479.25 = 256,419.02 : x
  2. Step 2: Convert to fraction form
    887,505.21/1,331,479.25 = 256,419.02/x
  3. Step 3: Cross multiply
    887,505.21x = 1,331,479.25 × 256,419.02
  4. Step 4: Simplify right side
    887,505.21x = 341,416,604,435.34
  5. Step 5: Solve for x
    x = 341,416,604,435.34/887,505.21
  6. Step 6: Final answer
    x = 384,692.51

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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.