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Finding the Fourth Proportional to 569,980.80, 854,971.20 and 149,299.20

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Solution

The fourth proportional to 569,980.80, 854,971.20 and 149,299.20 is: 223,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,980.80 : 854,971.20 = 149,299.20 : x
  2. Step 2: Convert to fraction form
    569,980.80/854,971.20 = 149,299.20/x
  3. Step 3: Cross multiply
    569,980.80x = 854,971.20 × 149,299.20
  4. Step 4: Simplify right side
    569,980.80x = 127,646,516,183.04
  5. Step 5: Solve for x
    x = 127,646,516,183.04/569,980.80
  6. Step 6: Final answer
    x = 223,948.80

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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.