Home / 647,461.24-971,291.72-220,897.15

Finding the Fourth Proportional to 647,461.24, 971,291.72 and 220,897.15

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Solution

The fourth proportional to 647,461.24, 971,291.72 and 220,897.15 is: 331,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,461.24 : 971,291.72 = 220,897.15 : x
  2. Step 2: Convert to fraction form
    647,461.24/971,291.72 = 220,897.15/x
  3. Step 3: Cross multiply
    647,461.24x = 971,291.72 × 220,897.15
  4. Step 4: Simplify right side
    647,461.24x = 214,555,572,766.60
  5. Step 5: Solve for x
    x = 214,555,572,766.60/647,461.24
  6. Step 6: Final answer
    x = 331,379.79

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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.