Home / 1,543,507.05-2,130,039.73-864,443.55

Finding the Fourth Proportional to 1,543,507.05, 2,130,039.73 and 864,443.55

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Solution

The fourth proportional to 1,543,507.05, 2,130,039.73 and 864,443.55 is: 1,192,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,507.05 : 2,130,039.73 = 864,443.55 : x
  2. Step 2: Convert to fraction form
    1,543,507.05/2,130,039.73 = 864,443.55/x
  3. Step 3: Cross multiply
    1,543,507.05x = 2,130,039.73 × 864,443.55
  4. Step 4: Simplify right side
    1,543,507.05x = 1,841,299,090,869.83
  5. Step 5: Solve for x
    x = 1,841,299,090,869.83/1,543,507.05
  6. Step 6: Final answer
    x = 1,192,932.09

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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.