Home / 857,415.47-1,183,148.10-494,956.10

Finding the Fourth Proportional to 857,415.47, 1,183,148.10 and 494,956.10

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Solution

The fourth proportional to 857,415.47, 1,183,148.10 and 494,956.10 is: 682,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,415.47 : 1,183,148.10 = 494,956.10 : x
  2. Step 2: Convert to fraction form
    857,415.47/1,183,148.10 = 494,956.10/x
  3. Step 3: Cross multiply
    857,415.47x = 1,183,148.10 × 494,956.10
  4. Step 4: Simplify right side
    857,415.47x = 585,606,370,979.81
  5. Step 5: Solve for x
    x = 585,606,370,979.81/857,415.47
  6. Step 6: Final answer
    x = 682,990.21

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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.