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Finding the Fourth Proportional to 940,578, 1,298,369.64 and 654,264.24

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Solution

The fourth proportional to 940,578, 1,298,369.64 and 654,264.24 is: 903,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,578 : 1,298,369.64 = 654,264.24 : x
  2. Step 2: Convert to fraction form
    940,578/1,298,369.64 = 654,264.24/x
  3. Step 3: Cross multiply
    940,578x = 1,298,369.64 × 654,264.24
  4. Step 4: Simplify right side
    940,578x = 849,476,825,753.67
  5. Step 5: Solve for x
    x = 849,476,825,753.67/940,578
  6. Step 6: Final answer
    x = 903,143.41

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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.