Home / 670,292.20-1,004,855.10-403,769.80

Finding the Fourth Proportional to 670,292.20, 1,004,855.10 and 403,769.80

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Solution

The fourth proportional to 670,292.20, 1,004,855.10 and 403,769.80 is: 605,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,292.20 : 1,004,855.10 = 403,769.80 : x
  2. Step 2: Convert to fraction form
    670,292.20/1,004,855.10 = 403,769.80/x
  3. Step 3: Cross multiply
    670,292.20x = 1,004,855.10 × 403,769.80
  4. Step 4: Simplify right side
    670,292.20x = 405,730,142,755.98
  5. Step 5: Solve for x
    x = 405,730,142,755.98/670,292.20
  6. Step 6: Final answer
    x = 605,303.39

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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.