Home / 947,698.56-1,307,778.89-517,979.07

Finding the Fourth Proportional to 947,698.56, 1,307,778.89 and 517,979.07

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Solution

The fourth proportional to 947,698.56, 1,307,778.89 and 517,979.07 is: 714,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,698.56 : 1,307,778.89 = 517,979.07 : x
  2. Step 2: Convert to fraction form
    947,698.56/1,307,778.89 = 517,979.07/x
  3. Step 3: Cross multiply
    947,698.56x = 1,307,778.89 × 517,979.07
  4. Step 4: Simplify right side
    947,698.56x = 677,402,090,617.94
  5. Step 5: Solve for x
    x = 677,402,090,617.94/947,698.56
  6. Step 6: Final answer
    x = 714,786.45

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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.