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Finding the Fourth Proportional to 695,875.59, 960,292.70 and 405,469.07

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Solution

The fourth proportional to 695,875.59, 960,292.70 and 405,469.07 is: 559,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,875.59 : 960,292.70 = 405,469.07 : x
  2. Step 2: Convert to fraction form
    695,875.59/960,292.70 = 405,469.07/x
  3. Step 3: Cross multiply
    695,875.59x = 960,292.70 × 405,469.07
  4. Step 4: Simplify right side
    695,875.59x = 389,368,981,167.98
  5. Step 5: Solve for x
    x = 389,368,981,167.98/695,875.59
  6. Step 6: Final answer
    x = 559,538.21

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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.