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Finding the Fourth Proportional to 604,993.80, 907,490.70 and 393,486.60

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Solution

The fourth proportional to 604,993.80, 907,490.70 and 393,486.60 is: 590,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,993.80 : 907,490.70 = 393,486.60 : x
  2. Step 2: Convert to fraction form
    604,993.80/907,490.70 = 393,486.60/x
  3. Step 3: Cross multiply
    604,993.80x = 907,490.70 × 393,486.60
  4. Step 4: Simplify right side
    604,993.80x = 357,085,430,074.62
  5. Step 5: Solve for x
    x = 357,085,430,074.62/604,993.80
  6. Step 6: Final answer
    x = 590,229.90

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Similar ratio
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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.