Home / 917,073.93-1,265,601.54-509,175.79

Finding the Fourth Proportional to 917,073.93, 1,265,601.54 and 509,175.79

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Solution

The fourth proportional to 917,073.93, 1,265,601.54 and 509,175.79 is: 702,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,073.93 : 1,265,601.54 = 509,175.79 : x
  2. Step 2: Convert to fraction form
    917,073.93/1,265,601.54 = 509,175.79/x
  3. Step 3: Cross multiply
    917,073.93x = 1,265,601.54 × 509,175.79
  4. Step 4: Simplify right side
    917,073.93x = 644,413,663,954.72
  5. Step 5: Solve for x
    x = 644,413,663,954.72/917,073.93
  6. Step 6: Final answer
    x = 702,684.53

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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.