Home / 947,731.54-1,307,866.35-518,011.42

Finding the Fourth Proportional to 947,731.54, 1,307,866.35 and 518,011.42

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Solution

The fourth proportional to 947,731.54, 1,307,866.35 and 518,011.42 is: 714,854.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,731.54 : 1,307,866.35 = 518,011.42 : x
  2. Step 2: Convert to fraction form
    947,731.54/1,307,866.35 = 518,011.42/x
  3. Step 3: Cross multiply
    947,731.54x = 1,307,866.35 × 518,011.42
  4. Step 4: Simplify right side
    947,731.54x = 677,489,705,133.72
  5. Step 5: Solve for x
    x = 677,489,705,133.72/947,731.54
  6. Step 6: Final answer
    x = 714,854.02

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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.