Home / 1,189,849.57-1,784,395.31-390,945.76

Finding the Fourth Proportional to 1,189,849.57, 1,784,395.31 and 390,945.76

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Solution

The fourth proportional to 1,189,849.57, 1,784,395.31 and 390,945.76 is: 586,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,849.57 : 1,784,395.31 = 390,945.76 : x
  2. Step 2: Convert to fraction form
    1,189,849.57/1,784,395.31 = 390,945.76/x
  3. Step 3: Cross multiply
    1,189,849.57x = 1,784,395.31 × 390,945.76
  4. Step 4: Simplify right side
    1,189,849.57x = 697,601,774,192.67
  5. Step 5: Solve for x
    x = 697,601,774,192.67/1,189,849.57
  6. Step 6: Final answer
    x = 586,294.09

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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.