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Finding the Fourth Proportional to 507,313.10, 700,090.62 and 280,958.60

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Solution

The fourth proportional to 507,313.10, 700,090.62 and 280,958.60 is: 387,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,313.10 : 700,090.62 = 280,958.60 : x
  2. Step 2: Convert to fraction form
    507,313.10/700,090.62 = 280,958.60/x
  3. Step 3: Cross multiply
    507,313.10x = 700,090.62 × 280,958.60
  4. Step 4: Simplify right side
    507,313.10x = 196,696,480,468.33
  5. Step 5: Solve for x
    x = 196,696,480,468.33/507,313.10
  6. Step 6: Final answer
    x = 387,722.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.