Home / 420,170.24-579,669.70-258,745.04

Finding the Fourth Proportional to 420,170.24, 579,669.70 and 258,745.04

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Solution

The fourth proportional to 420,170.24, 579,669.70 and 258,745.04 is: 356,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,170.24 : 579,669.70 = 258,745.04 : x
  2. Step 2: Convert to fraction form
    420,170.24/579,669.70 = 258,745.04/x
  3. Step 3: Cross multiply
    420,170.24x = 579,669.70 × 258,745.04
  4. Step 4: Simplify right side
    420,170.24x = 149,986,658,419.56
  5. Step 5: Solve for x
    x = 149,986,658,419.56/420,170.24
  6. Step 6: Final answer
    x = 356,966.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.