Home / 838,816-1,256,979.42-616,111.36

Finding the Fourth Proportional to 838,816, 1,256,979.42 and 616,111.36

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Solution

The fourth proportional to 838,816, 1,256,979.42 and 616,111.36 is: 923,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,816 : 1,256,979.42 = 616,111.36 : x
  2. Step 2: Convert to fraction form
    838,816/1,256,979.42 = 616,111.36/x
  3. Step 3: Cross multiply
    838,816x = 1,256,979.42 × 616,111.36
  4. Step 4: Simplify right side
    838,816x = 774,439,299,948.21
  5. Step 5: Solve for x
    x = 774,439,299,948.21/838,816
  6. Step 6: Final answer
    x = 923,252.89

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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.