Home / 857,421.48-1,183,156.39-494,962.11

Finding the Fourth Proportional to 857,421.48, 1,183,156.39 and 494,962.11

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Solution

The fourth proportional to 857,421.48, 1,183,156.39 and 494,962.11 is: 682,998.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,421.48 : 1,183,156.39 = 494,962.11 : x
  2. Step 2: Convert to fraction form
    857,421.48/1,183,156.39 = 494,962.11/x
  3. Step 3: Cross multiply
    857,421.48x = 1,183,156.39 × 494,962.11
  4. Step 4: Simplify right side
    857,421.48x = 585,617,583,254.38
  5. Step 5: Solve for x
    x = 585,617,583,254.38/857,421.48
  6. Step 6: Final answer
    x = 682,998.50

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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.