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Finding the Fourth Proportional to 1,294,976.27, 1,786,598.67 and 750,812.39

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Solution

The fourth proportional to 1,294,976.27, 1,786,598.67 and 750,812.39 is: 1,035,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,976.27 : 1,786,598.67 = 750,812.39 : x
  2. Step 2: Convert to fraction form
    1,294,976.27/1,786,598.67 = 750,812.39/x
  3. Step 3: Cross multiply
    1,294,976.27x = 1,786,598.67 × 750,812.39
  4. Step 4: Simplify right side
    1,294,976.27x = 1,341,400,417,393.52
  5. Step 5: Solve for x
    x = 1,341,400,417,393.52/1,294,976.27
  6. Step 6: Final answer
    x = 1,035,849.42

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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.