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Finding the Fourth Proportional to 695,862.89, 960,274.49 and 409,401.39

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Solution

The fourth proportional to 695,862.89, 960,274.49 and 409,401.39 is: 564,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,862.89 : 960,274.49 = 409,401.39 : x
  2. Step 2: Convert to fraction form
    695,862.89/960,274.49 = 409,401.39/x
  3. Step 3: Cross multiply
    695,862.89x = 960,274.49 × 409,401.39
  4. Step 4: Simplify right side
    695,862.89x = 393,137,708,940.53
  5. Step 5: Solve for x
    x = 393,137,708,940.53/695,862.89
  6. Step 6: Final answer
    x = 564,964.33

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1.5x scale

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.