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Finding the Fourth Proportional to 647,897.56, 971,735.62 and 174,472.20

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Solution

The fourth proportional to 647,897.56, 971,735.62 and 174,472.20 is: 261,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,897.56 : 971,735.62 = 174,472.20 : x
  2. Step 2: Convert to fraction form
    647,897.56/971,735.62 = 174,472.20/x
  3. Step 3: Cross multiply
    647,897.56x = 971,735.62 × 174,472.20
  4. Step 4: Simplify right side
    647,897.56x = 169,540,851,439.76
  5. Step 5: Solve for x
    x = 169,540,851,439.76/647,897.56
  6. Step 6: Final answer
    x = 261,678.48

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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.