Home / 857,420.48-1,183,154.98-494,961.12

Finding the Fourth Proportional to 857,420.48, 1,183,154.98 and 494,961.12

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Solution

The fourth proportional to 857,420.48, 1,183,154.98 and 494,961.12 is: 682,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,420.48 : 1,183,154.98 = 494,961.12 : x
  2. Step 2: Convert to fraction form
    857,420.48/1,183,154.98 = 494,961.12/x
  3. Step 3: Cross multiply
    857,420.48x = 1,183,154.98 × 494,961.12
  4. Step 4: Simplify right side
    857,420.48x = 585,615,714,034.38
  5. Step 5: Solve for x
    x = 585,615,714,034.38/857,420.48
  6. Step 6: Final answer
    x = 682,997.11

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1.5x scale

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.