Home / 1,221,594.78-1,685,802.22-712,395.56

Finding the Fourth Proportional to 1,221,594.78, 1,685,802.22 and 712,395.56

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Solution

The fourth proportional to 1,221,594.78, 1,685,802.22 and 712,395.56 is: 983,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,594.78 : 1,685,802.22 = 712,395.56 : x
  2. Step 2: Convert to fraction form
    1,221,594.78/1,685,802.22 = 712,395.56/x
  3. Step 3: Cross multiply
    1,221,594.78x = 1,685,802.22 × 712,395.56
  4. Step 4: Simplify right side
    1,221,594.78x = 1,200,958,016,566.14
  5. Step 5: Solve for x
    x = 1,200,958,016,566.14/1,221,594.78
  6. Step 6: Final answer
    x = 983,106.70

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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.