Home / 1,375,905.61-1,898,686.20-764,097.58

Finding the Fourth Proportional to 1,375,905.61, 1,898,686.20 and 764,097.58

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Solution

The fourth proportional to 1,375,905.61, 1,898,686.20 and 764,097.58 is: 1,054,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,905.61 : 1,898,686.20 = 764,097.58 : x
  2. Step 2: Convert to fraction form
    1,375,905.61/1,898,686.20 = 764,097.58/x
  3. Step 3: Cross multiply
    1,375,905.61x = 1,898,686.20 × 764,097.58
  4. Step 4: Simplify right side
    1,375,905.61x = 1,450,781,530,599.40
  5. Step 5: Solve for x
    x = 1,450,781,530,599.40/1,375,905.61
  6. Step 6: Final answer
    x = 1,054,419.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.