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Finding the Fourth Proportional to 507,825.75, 700,799.64 and 281,471.25

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Solution

The fourth proportional to 507,825.75, 700,799.64 and 281,471.25 is: 388,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,825.75 : 700,799.64 = 281,471.25 : x
  2. Step 2: Convert to fraction form
    507,825.75/700,799.64 = 281,471.25/x
  3. Step 3: Cross multiply
    507,825.75x = 700,799.64 × 281,471.25
  4. Step 4: Simplify right side
    507,825.75x = 197,254,950,670.35
  5. Step 5: Solve for x
    x = 197,254,950,670.35/507,825.75
  6. Step 6: Final answer
    x = 388,430.38

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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.