Home / 917,270.74-1,265,791.26-509,398.72

Finding the Fourth Proportional to 917,270.74, 1,265,791.26 and 509,398.72

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Solution

The fourth proportional to 917,270.74, 1,265,791.26 and 509,398.72 is: 702,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,270.74 : 1,265,791.26 = 509,398.72 : x
  2. Step 2: Convert to fraction form
    917,270.74/1,265,791.26 = 509,398.72/x
  3. Step 3: Cross multiply
    917,270.74x = 1,265,791.26 × 509,398.72
  4. Step 4: Simplify right side
    917,270.74x = 644,792,447,631.19
  5. Step 5: Solve for x
    x = 644,792,447,631.19/917,270.74
  6. Step 6: Final answer
    x = 702,946.71

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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.