Home / 857,817.24-1,286,735.10-258,783.60

Finding the Fourth Proportional to 857,817.24, 1,286,735.10 and 258,783.60

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Solution

The fourth proportional to 857,817.24, 1,286,735.10 and 258,783.60 is: 388,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,817.24 : 1,286,735.10 = 258,783.60 : x
  2. Step 2: Convert to fraction form
    857,817.24/1,286,735.10 = 258,783.60/x
  3. Step 3: Cross multiply
    857,817.24x = 1,286,735.10 × 258,783.60
  4. Step 4: Simplify right side
    857,817.24x = 332,985,941,424.36
  5. Step 5: Solve for x
    x = 332,985,941,424.36/857,817.24
  6. Step 6: Final answer
    x = 388,178.19

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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.