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Finding the Fourth Proportional to 647,461.33, 971,280.63 and 220,882.63

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Solution

The fourth proportional to 647,461.33, 971,280.63 and 220,882.63 is: 331,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,461.33 : 971,280.63 = 220,882.63 : x
  2. Step 2: Convert to fraction form
    647,461.33/971,280.63 = 220,882.63/x
  3. Step 3: Cross multiply
    647,461.33x = 971,280.63 × 220,882.63
  4. Step 4: Simplify right side
    647,461.33x = 214,539,017,594.26
  5. Step 5: Solve for x
    x = 214,539,017,594.26/647,461.33
  6. Step 6: Final answer
    x = 331,354.18

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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.