Home / 1,345,814.51-1,856,904.77-764,991.94

Finding the Fourth Proportional to 1,345,814.51, 1,856,904.77 and 764,991.94

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Solution

The fourth proportional to 1,345,814.51, 1,856,904.77 and 764,991.94 is: 1,055,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,814.51 : 1,856,904.77 = 764,991.94 : x
  2. Step 2: Convert to fraction form
    1,345,814.51/1,856,904.77 = 764,991.94/x
  3. Step 3: Cross multiply
    1,345,814.51x = 1,856,904.77 × 764,991.94
  4. Step 4: Simplify right side
    1,345,814.51x = 1,420,517,169,288.07
  5. Step 5: Solve for x
    x = 1,420,517,169,288.07/1,345,814.51
  6. Step 6: Final answer
    x = 1,055,507.40

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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.