Home / 420,190.20-579,848.14-250,421.24

Finding the Fourth Proportional to 420,190.20, 579,848.14 and 250,421.24

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Solution

The fourth proportional to 420,190.20, 579,848.14 and 250,421.24 is: 345,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,190.20 : 579,848.14 = 250,421.24 : x
  2. Step 2: Convert to fraction form
    420,190.20/579,848.14 = 250,421.24/x
  3. Step 3: Cross multiply
    420,190.20x = 579,848.14 × 250,421.24
  4. Step 4: Simplify right side
    420,190.20x = 145,206,290,230.49
  5. Step 5: Solve for x
    x = 145,206,290,230.49/420,190.20
  6. Step 6: Final answer
    x = 345,572.77

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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.