Home / 1,928,816.13-2,887,548.55-1,287,529.23

Finding the Fourth Proportional to 1,928,816.13, 2,887,548.55 and 1,287,529.23

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Solution

The fourth proportional to 1,928,816.13, 2,887,548.55 and 1,287,529.23 is: 1,927,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,816.13 : 2,887,548.55 = 1,287,529.23 : x
  2. Step 2: Convert to fraction form
    1,928,816.13/2,887,548.55 = 1,287,529.23/x
  3. Step 3: Cross multiply
    1,928,816.13x = 2,887,548.55 × 1,287,529.23
  4. Step 4: Simplify right side
    1,928,816.13x = 3,717,803,161,169.12
  5. Step 5: Solve for x
    x = 3,717,803,161,169.12/1,928,816.13
  6. Step 6: Final answer
    x = 1,927,505.22

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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.