Home / 945,636.93-1,304,977.64-515,917.35

Finding the Fourth Proportional to 945,636.93, 1,304,977.64 and 515,917.35

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Solution

The fourth proportional to 945,636.93, 1,304,977.64 and 515,917.35 is: 711,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,636.93 : 1,304,977.64 = 515,917.35 : x
  2. Step 2: Convert to fraction form
    945,636.93/1,304,977.64 = 515,917.35/x
  3. Step 3: Cross multiply
    945,636.93x = 1,304,977.64 × 515,917.35
  4. Step 4: Simplify right side
    945,636.93x = 673,260,603,258.47
  5. Step 5: Solve for x
    x = 673,260,603,258.47/945,636.93
  6. Step 6: Final answer
    x = 711,965.22

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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.