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Finding the Fourth Proportional to 695,857.87, 960,267.58 and 409,396.39

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Solution

The fourth proportional to 695,857.87, 960,267.58 and 409,396.39 is: 564,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,857.87 : 960,267.58 = 409,396.39 : x
  2. Step 2: Convert to fraction form
    695,857.87/960,267.58 = 409,396.39/x
  3. Step 3: Cross multiply
    695,857.87x = 960,267.58 × 409,396.39
  4. Step 4: Simplify right side
    695,857.87x = 393,130,080,686.04
  5. Step 5: Solve for x
    x = 393,130,080,686.04/695,857.87
  6. Step 6: Final answer
    x = 564,957.44

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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.