Home / 1,119,239.60-1,678,243.80-764,654

Finding the Fourth Proportional to 1,119,239.60, 1,678,243.80 and 764,654

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Solution

The fourth proportional to 1,119,239.60, 1,678,243.80 and 764,654 is: 1,146,560.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,239.60 : 1,678,243.80 = 764,654 : x
  2. Step 2: Convert to fraction form
    1,119,239.60/1,678,243.80 = 764,654/x
  3. Step 3: Cross multiply
    1,119,239.60x = 1,678,243.80 × 764,654
  4. Step 4: Simplify right side
    1,119,239.60x = 1,283,275,834,645.20
  5. Step 5: Solve for x
    x = 1,283,275,834,645.20/1,119,239.60
  6. Step 6: Final answer
    x = 1,146,560.43

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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.