Home / 1,221,376.32-1,833,118.56-847,661.76

Finding the Fourth Proportional to 1,221,376.32, 1,833,118.56 and 847,661.76

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Solution

The fourth proportional to 1,221,376.32, 1,833,118.56 and 847,661.76 is: 1,272,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,376.32 : 1,833,118.56 = 847,661.76 : x
  2. Step 2: Convert to fraction form
    1,221,376.32/1,833,118.56 = 847,661.76/x
  3. Step 3: Cross multiply
    1,221,376.32x = 1,833,118.56 × 847,661.76
  4. Step 4: Simplify right side
    1,221,376.32x = 1,553,864,504,858.27
  5. Step 5: Solve for x
    x = 1,553,864,504,858.27/1,221,376.32
  6. Step 6: Final answer
    x = 1,272,224.19

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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.