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Finding the Fourth Proportional to 647,455.68, 971,619.84 and 226,735.20

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Solution

The fourth proportional to 647,455.68, 971,619.84 and 226,735.20 is: 340,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,455.68 : 971,619.84 = 226,735.20 : x
  2. Step 2: Convert to fraction form
    647,455.68/971,619.84 = 226,735.20/x
  3. Step 3: Cross multiply
    647,455.68x = 971,619.84 × 226,735.20
  4. Step 4: Simplify right side
    647,455.68x = 220,300,418,746.37
  5. Step 5: Solve for x
    x = 220,300,418,746.37/647,455.68
  6. Step 6: Final answer
    x = 340,255.60

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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.