Home / 1,221,368.15-1,685,498.22-677,539.62

Finding the Fourth Proportional to 1,221,368.15, 1,685,498.22 and 677,539.62

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Solution

The fourth proportional to 1,221,368.15, 1,685,498.22 and 677,539.62 is: 935,010.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,368.15 : 1,685,498.22 = 677,539.62 : x
  2. Step 2: Convert to fraction form
    1,221,368.15/1,685,498.22 = 677,539.62/x
  3. Step 3: Cross multiply
    1,221,368.15x = 1,685,498.22 × 677,539.62
  4. Step 4: Simplify right side
    1,221,368.15x = 1,141,991,823,489.48
  5. Step 5: Solve for x
    x = 1,141,991,823,489.48/1,221,368.15
  6. Step 6: Final answer
    x = 935,010.32

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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.