Home / 857,421.47-1,183,156.38-494,962.08

Finding the Fourth Proportional to 857,421.47, 1,183,156.38 and 494,962.08

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Solution

The fourth proportional to 857,421.47, 1,183,156.38 and 494,962.08 is: 682,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,421.47 : 1,183,156.38 = 494,962.08 : x
  2. Step 2: Convert to fraction form
    857,421.47/1,183,156.38 = 494,962.08/x
  3. Step 3: Cross multiply
    857,421.47x = 1,183,156.38 × 494,962.08
  4. Step 4: Simplify right side
    857,421.47x = 585,617,542,810.07
  5. Step 5: Solve for x
    x = 585,617,542,810.07/857,421.47
  6. Step 6: Final answer
    x = 682,998.46

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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.