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Finding the Fourth Proportional to 1,294,846.16, 1,786,982.28 and 751,167.68

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Solution

The fourth proportional to 1,294,846.16, 1,786,982.28 and 751,167.68 is: 1,036,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,846.16 : 1,786,982.28 = 751,167.68 : x
  2. Step 2: Convert to fraction form
    1,294,846.16/1,786,982.28 = 751,167.68/x
  3. Step 3: Cross multiply
    1,294,846.16x = 1,786,982.28 × 751,167.68
  4. Step 4: Simplify right side
    1,294,846.16x = 1,342,323,333,468.71
  5. Step 5: Solve for x
    x = 1,342,323,333,468.71/1,294,846.16
  6. Step 6: Final answer
    x = 1,036,666.27

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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.