Home / 928,539.64-1,392,809.10-612,922.60

Finding the Fourth Proportional to 928,539.64, 1,392,809.10 and 612,922.60

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Solution

The fourth proportional to 928,539.64, 1,392,809.10 and 612,922.60 is: 919,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,539.64 : 1,392,809.10 = 612,922.60 : x
  2. Step 2: Convert to fraction form
    928,539.64/1,392,809.10 = 612,922.60/x
  3. Step 3: Cross multiply
    928,539.64x = 1,392,809.10 × 612,922.60
  4. Step 4: Simplify right side
    928,539.64x = 853,684,174,875.66
  5. Step 5: Solve for x
    x = 853,684,174,875.66/928,539.64
  6. Step 6: Final answer
    x = 919,383.66

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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.