Home / 1,221,051.51-1,685,151.99-677,362.59

Finding the Fourth Proportional to 1,221,051.51, 1,685,151.99 and 677,362.59

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Solution

The fourth proportional to 1,221,051.51, 1,685,151.99 and 677,362.59 is: 934,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,051.51 : 1,685,151.99 = 677,362.59 : x
  2. Step 2: Convert to fraction form
    1,221,051.51/1,685,151.99 = 677,362.59/x
  3. Step 3: Cross multiply
    1,221,051.51x = 1,685,151.99 × 677,362.59
  4. Step 4: Simplify right side
    1,221,051.51x = 1,141,458,916,490.05
  5. Step 5: Solve for x
    x = 1,141,458,916,490.05/1,221,051.51
  6. Step 6: Final answer
    x = 934,816.35

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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.