Home / 857,724.16-1,286,589.60-358,738.24

Finding the Fourth Proportional to 857,724.16, 1,286,589.60 and 358,738.24

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Solution

The fourth proportional to 857,724.16, 1,286,589.60 and 358,738.24 is: 538,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,724.16 : 1,286,589.60 = 358,738.24 : x
  2. Step 2: Convert to fraction form
    857,724.16/1,286,589.60 = 358,738.24/x
  3. Step 3: Cross multiply
    857,724.16x = 1,286,589.60 × 358,738.24
  4. Step 4: Simplify right side
    857,724.16x = 461,548,888,706.30
  5. Step 5: Solve for x
    x = 461,548,888,706.30/857,724.16
  6. Step 6: Final answer
    x = 538,108.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.