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Finding the Fourth Proportional to 507,266.25, 700,049.43 and 280,911.75

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Solution

The fourth proportional to 507,266.25, 700,049.43 and 280,911.75 is: 387,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,266.25 : 700,049.43 = 280,911.75 : x
  2. Step 2: Convert to fraction form
    507,266.25/700,049.43 = 280,911.75/x
  3. Step 3: Cross multiply
    507,266.25x = 700,049.43 × 280,911.75
  4. Step 4: Simplify right side
    507,266.25x = 196,652,110,467.80
  5. Step 5: Solve for x
    x = 196,652,110,467.80/507,266.25
  6. Step 6: Final answer
    x = 387,670.40

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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.