Home / 648,821.60-973,232.40-228,042.80

Finding the Fourth Proportional to 648,821.60, 973,232.40 and 228,042.80

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Solution

The fourth proportional to 648,821.60, 973,232.40 and 228,042.80 is: 342,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,821.60 : 973,232.40 = 228,042.80 : x
  2. Step 2: Convert to fraction form
    648,821.60/973,232.40 = 228,042.80/x
  3. Step 3: Cross multiply
    648,821.60x = 973,232.40 × 228,042.80
  4. Step 4: Simplify right side
    648,821.60x = 221,938,641,546.72
  5. Step 5: Solve for x
    x = 221,938,641,546.72/648,821.60
  6. Step 6: Final answer
    x = 342,064.20

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Double scale
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Similar ratio
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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.