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Finding the Fourth Proportional to 695,153.68, 959,145.96 and 423,218.32

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Solution

The fourth proportional to 695,153.68, 959,145.96 and 423,218.32 is: 583,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,153.68 : 959,145.96 = 423,218.32 : x
  2. Step 2: Convert to fraction form
    695,153.68/959,145.96 = 423,218.32/x
  3. Step 3: Cross multiply
    695,153.68x = 959,145.96 × 423,218.32
  4. Step 4: Simplify right side
    695,153.68x = 405,928,141,825.99
  5. Step 5: Solve for x
    x = 405,928,141,825.99/695,153.68
  6. Step 6: Final answer
    x = 583,940.15

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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.