Home / 947,806.44-1,307,972.80-518,088.30

Finding the Fourth Proportional to 947,806.44, 1,307,972.80 and 518,088.30

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Solution

The fourth proportional to 947,806.44, 1,307,972.80 and 518,088.30 is: 714,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,806.44 : 1,307,972.80 = 518,088.30 : x
  2. Step 2: Convert to fraction form
    947,806.44/1,307,972.80 = 518,088.30/x
  3. Step 3: Cross multiply
    947,806.44x = 1,307,972.80 × 518,088.30
  4. Step 4: Simplify right side
    947,806.44x = 677,645,404,398.24
  5. Step 5: Solve for x
    x = 677,645,404,398.24/947,806.44
  6. Step 6: Final answer
    x = 714,961.81

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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.