Home / 1,189,857.83-1,784,407.68-390,954.02

Finding the Fourth Proportional to 1,189,857.83, 1,784,407.68 and 390,954.02

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Solution

The fourth proportional to 1,189,857.83, 1,784,407.68 and 390,954.02 is: 586,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,857.83 : 1,784,407.68 = 390,954.02 : x
  2. Step 2: Convert to fraction form
    1,189,857.83/1,784,407.68 = 390,954.02/x
  3. Step 3: Cross multiply
    1,189,857.83x = 1,784,407.68 × 390,954.02
  4. Step 4: Simplify right side
    1,189,857.83x = 697,621,346,892.84
  5. Step 5: Solve for x
    x = 697,621,346,892.84/1,189,857.83
  6. Step 6: Final answer
    x = 586,306.47

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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.