Home / 857,962.63-1,286,953.13-258,929.16

Finding the Fourth Proportional to 857,962.63, 1,286,953.13 and 258,929.16

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Solution

The fourth proportional to 857,962.63, 1,286,953.13 and 258,929.16 is: 388,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,962.63 : 1,286,953.13 = 258,929.16 : x
  2. Step 2: Convert to fraction form
    857,962.63/1,286,953.13 = 258,929.16/x
  3. Step 3: Cross multiply
    857,962.63x = 1,286,953.13 × 258,929.16
  4. Step 4: Simplify right side
    857,962.63x = 333,229,692,910.27
  5. Step 5: Solve for x
    x = 333,229,692,910.27/857,962.63
  6. Step 6: Final answer
    x = 388,396.51

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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.