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Finding the Fourth Proportional to 490,666.60, 735,999.90 and 301,709.80

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Solution

The fourth proportional to 490,666.60, 735,999.90 and 301,709.80 is: 452,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,666.60 : 735,999.90 = 301,709.80 : x
  2. Step 2: Convert to fraction form
    490,666.60/735,999.90 = 301,709.80/x
  3. Step 3: Cross multiply
    490,666.60x = 735,999.90 × 301,709.80
  4. Step 4: Simplify right side
    490,666.60x = 222,058,382,629.02
  5. Step 5: Solve for x
    x = 222,058,382,629.02/490,666.60
  6. Step 6: Final answer
    x = 452,564.70

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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.