Home / 436,267.20-654,400.80-425,769.60

Finding the Fourth Proportional to 436,267.20, 654,400.80 and 425,769.60

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Solution

The fourth proportional to 436,267.20, 654,400.80 and 425,769.60 is: 638,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,267.20 : 654,400.80 = 425,769.60 : x
  2. Step 2: Convert to fraction form
    436,267.20/654,400.80 = 425,769.60/x
  3. Step 3: Cross multiply
    436,267.20x = 654,400.80 × 425,769.60
  4. Step 4: Simplify right side
    436,267.20x = 278,623,966,855.68
  5. Step 5: Solve for x
    x = 278,623,966,855.68/436,267.20
  6. Step 6: Final answer
    x = 638,654.40

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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.