Home / 857,556.93-1,286,529.47-288,922.58

Finding the Fourth Proportional to 857,556.93, 1,286,529.47 and 288,922.58

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Solution

The fourth proportional to 857,556.93, 1,286,529.47 and 288,922.58 is: 433,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,556.93 : 1,286,529.47 = 288,922.58 : x
  2. Step 2: Convert to fraction form
    857,556.93/1,286,529.47 = 288,922.58/x
  3. Step 3: Cross multiply
    857,556.93x = 1,286,529.47 × 288,922.58
  4. Step 4: Simplify right side
    857,556.93x = 371,707,405,841.17
  5. Step 5: Solve for x
    x = 371,707,405,841.17/857,556.93
  6. Step 6: Final answer
    x = 433,449.25

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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.