Home / 647,619.60-971,429.40-226,840.80

Finding the Fourth Proportional to 647,619.60, 971,429.40 and 226,840.80

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Solution

The fourth proportional to 647,619.60, 971,429.40 and 226,840.80 is: 340,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,619.60 : 971,429.40 = 226,840.80 : x
  2. Step 2: Convert to fraction form
    647,619.60/971,429.40 = 226,840.80/x
  3. Step 3: Cross multiply
    647,619.60x = 971,429.40 × 226,840.80
  4. Step 4: Simplify right side
    647,619.60x = 220,359,822,239.52
  5. Step 5: Solve for x
    x = 220,359,822,239.52/647,619.60
  6. Step 6: Final answer
    x = 340,261.20

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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.