Home / 858,785.23-1,288,380.14-259,751.35

Finding the Fourth Proportional to 858,785.23, 1,288,380.14 and 259,751.35

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Solution

The fourth proportional to 858,785.23, 1,288,380.14 and 259,751.35 is: 389,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,785.23 : 1,288,380.14 = 259,751.35 : x
  2. Step 2: Convert to fraction form
    858,785.23/1,288,380.14 = 259,751.35/x
  3. Step 3: Cross multiply
    858,785.23x = 1,288,380.14 × 259,751.35
  4. Step 4: Simplify right side
    858,785.23x = 334,658,480,678.19
  5. Step 5: Solve for x
    x = 334,658,480,678.19/858,785.23
  6. Step 6: Final answer
    x = 389,688.21

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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.