Home / 692,738.91-1,039,407.72-372,516.49

Finding the Fourth Proportional to 692,738.91, 1,039,407.72 and 372,516.49

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Solution

The fourth proportional to 692,738.91, 1,039,407.72 and 372,516.49 is: 558,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,738.91 : 1,039,407.72 = 372,516.49 : x
  2. Step 2: Convert to fraction form
    692,738.91/1,039,407.72 = 372,516.49/x
  3. Step 3: Cross multiply
    692,738.91x = 1,039,407.72 × 372,516.49
  4. Step 4: Simplify right side
    692,738.91x = 387,196,519,406.66
  5. Step 5: Solve for x
    x = 387,196,519,406.66/692,738.91
  6. Step 6: Final answer
    x = 558,935.72

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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.