Home / 1,119,143.40-1,678,715.10-764,849.40

Finding the Fourth Proportional to 1,119,143.40, 1,678,715.10 and 764,849.40

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Solution

The fourth proportional to 1,119,143.40, 1,678,715.10 and 764,849.40 is: 1,147,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,143.40 : 1,678,715.10 = 764,849.40 : x
  2. Step 2: Convert to fraction form
    1,119,143.40/1,678,715.10 = 764,849.40/x
  3. Step 3: Cross multiply
    1,119,143.40x = 1,678,715.10 × 764,849.40
  4. Step 4: Simplify right side
    1,119,143.40x = 1,283,964,237,005.94
  5. Step 5: Solve for x
    x = 1,283,964,237,005.94/1,119,143.40
  6. Step 6: Final answer
    x = 1,147,274.10

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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.