Home / 917,073.68-1,265,601.20-509,175.54

Finding the Fourth Proportional to 917,073.68, 1,265,601.20 and 509,175.54

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Solution

The fourth proportional to 917,073.68, 1,265,601.20 and 509,175.54 is: 702,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,073.68 : 1,265,601.20 = 509,175.54 : x
  2. Step 2: Convert to fraction form
    917,073.68/1,265,601.20 = 509,175.54/x
  3. Step 3: Cross multiply
    917,073.68x = 1,265,601.20 × 509,175.54
  4. Step 4: Simplify right side
    917,073.68x = 644,413,174,434.65
  5. Step 5: Solve for x
    x = 644,413,174,434.65/917,073.68
  6. Step 6: Final answer
    x = 702,684.19

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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.