Home / 857,809.29-1,286,723.15-258,775.64

Finding the Fourth Proportional to 857,809.29, 1,286,723.15 and 258,775.64

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Solution

The fourth proportional to 857,809.29, 1,286,723.15 and 258,775.64 is: 388,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,809.29 : 1,286,723.15 = 258,775.64 : x
  2. Step 2: Convert to fraction form
    857,809.29/1,286,723.15 = 258,775.64/x
  3. Step 3: Cross multiply
    857,809.29x = 1,286,723.15 × 258,775.64
  4. Step 4: Simplify right side
    857,809.29x = 332,972,606,644.07
  5. Step 5: Solve for x
    x = 332,972,606,644.07/857,809.29
  6. Step 6: Final answer
    x = 388,166.24

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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.