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Finding the Fourth Proportional to 647,525.20, 971,287.80 and 606,053.20

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Solution

The fourth proportional to 647,525.20, 971,287.80 and 606,053.20 is: 909,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,525.20 : 971,287.80 = 606,053.20 : x
  2. Step 2: Convert to fraction form
    647,525.20/971,287.80 = 606,053.20/x
  3. Step 3: Cross multiply
    647,525.20x = 971,287.80 × 606,053.20
  4. Step 4: Simplify right side
    647,525.20x = 588,652,079,310.96
  5. Step 5: Solve for x
    x = 588,652,079,310.96/647,525.20
  6. Step 6: Final answer
    x = 909,079.80

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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.