Home / 988,761.60-1,482,796.80-515,289.60

Finding the Fourth Proportional to 988,761.60, 1,482,796.80 and 515,289.60

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Solution

The fourth proportional to 988,761.60, 1,482,796.80 and 515,289.60 is: 772,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,761.60 : 1,482,796.80 = 515,289.60 : x
  2. Step 2: Convert to fraction form
    988,761.60/1,482,796.80 = 515,289.60/x
  3. Step 3: Cross multiply
    988,761.60x = 1,482,796.80 × 515,289.60
  4. Step 4: Simplify right side
    988,761.60x = 764,069,769,953.28
  5. Step 5: Solve for x
    x = 764,069,769,953.28/988,761.60
  6. Step 6: Final answer
    x = 772,754.29

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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.