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Finding the Fourth Proportional to 695,390.88, 959,789.16 and 423,548.40

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Solution

The fourth proportional to 695,390.88, 959,789.16 and 423,548.40 is: 584,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,390.88 : 959,789.16 = 423,548.40 : x
  2. Step 2: Convert to fraction form
    695,390.88/959,789.16 = 423,548.40/x
  3. Step 3: Cross multiply
    695,390.88x = 959,789.16 × 423,548.40
  4. Step 4: Simplify right side
    695,390.88x = 406,517,163,055.34
  5. Step 5: Solve for x
    x = 406,517,163,055.34/695,390.88
  6. Step 6: Final answer
    x = 584,588.00

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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.