Home / 857,590.42-1,286,571.40-258,501.46

Finding the Fourth Proportional to 857,590.42, 1,286,571.40 and 258,501.46

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Solution

The fourth proportional to 857,590.42, 1,286,571.40 and 258,501.46 is: 387,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,590.42 : 1,286,571.40 = 258,501.46 : x
  2. Step 2: Convert to fraction form
    857,590.42/1,286,571.40 = 258,501.46/x
  3. Step 3: Cross multiply
    857,590.42x = 1,286,571.40 × 258,501.46
  4. Step 4: Simplify right side
    857,590.42x = 332,580,585,294.24
  5. Step 5: Solve for x
    x = 332,580,585,294.24/857,590.42
  6. Step 6: Final answer
    x = 387,808.19

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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.