Home / 1,221,359.01-1,685,502.45-677,477.09

Finding the Fourth Proportional to 1,221,359.01, 1,685,502.45 and 677,477.09

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Solution

The fourth proportional to 1,221,359.01, 1,685,502.45 and 677,477.09 is: 934,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,359.01 : 1,685,502.45 = 677,477.09 : x
  2. Step 2: Convert to fraction form
    1,221,359.01/1,685,502.45 = 677,477.09/x
  3. Step 3: Cross multiply
    1,221,359.01x = 1,685,502.45 × 677,477.09
  4. Step 4: Simplify right side
    1,221,359.01x = 1,141,889,286,586.36
  5. Step 5: Solve for x
    x = 1,141,889,286,586.36/1,221,359.01
  6. Step 6: Final answer
    x = 934,933.36

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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.