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Finding the Fourth Proportional to 437,717.30, 656,187.15 and 260,035.70

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Solution

The fourth proportional to 437,717.30, 656,187.15 and 260,035.70 is: 389,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,717.30 : 656,187.15 = 260,035.70 : x
  2. Step 2: Convert to fraction form
    437,717.30/656,187.15 = 260,035.70/x
  3. Step 3: Cross multiply
    437,717.30x = 656,187.15 × 260,035.70
  4. Step 4: Simplify right side
    437,717.30x = 170,632,084,881.26
  5. Step 5: Solve for x
    x = 170,632,084,881.26/437,717.30
  6. Step 6: Final answer
    x = 389,822.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.