Home / 849,469.72-1,172,207.80-505,286.68

Finding the Fourth Proportional to 849,469.72, 1,172,207.80 and 505,286.68

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Solution

The fourth proportional to 849,469.72, 1,172,207.80 and 505,286.68 is: 697,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,469.72 : 1,172,207.80 = 505,286.68 : x
  2. Step 2: Convert to fraction form
    849,469.72/1,172,207.80 = 505,286.68/x
  3. Step 3: Cross multiply
    849,469.72x = 1,172,207.80 × 505,286.68
  4. Step 4: Simplify right side
    849,469.72x = 592,300,987,532.10
  5. Step 5: Solve for x
    x = 592,300,987,532.10/849,469.72
  6. Step 6: Final answer
    x = 697,259.68

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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.