Home / 1,291,333.19-1,935,227.84-817,169.72

Finding the Fourth Proportional to 1,291,333.19, 1,935,227.84 and 817,169.72

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Solution

The fourth proportional to 1,291,333.19, 1,935,227.84 and 817,169.72 is: 1,224,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,333.19 : 1,935,227.84 = 817,169.72 : x
  2. Step 2: Convert to fraction form
    1,291,333.19/1,935,227.84 = 817,169.72/x
  3. Step 3: Cross multiply
    1,291,333.19x = 1,935,227.84 × 817,169.72
  4. Step 4: Simplify right side
    1,291,333.19x = 1,581,409,578,387.02
  5. Step 5: Solve for x
    x = 1,581,409,578,387.02/1,291,333.19
  6. Step 6: Final answer
    x = 1,224,633.27

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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.