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Finding the Fourth Proportional to 507,510.80, 760,716.84 and 330,144.56

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Solution

The fourth proportional to 507,510.80, 760,716.84 and 330,144.56 is: 494,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,510.80 : 760,716.84 = 330,144.56 : x
  2. Step 2: Convert to fraction form
    507,510.80/760,716.84 = 330,144.56/x
  3. Step 3: Cross multiply
    507,510.80x = 760,716.84 × 330,144.56
  4. Step 4: Simplify right side
    507,510.80x = 251,146,526,426.39
  5. Step 5: Solve for x
    x = 251,146,526,426.39/507,510.80
  6. Step 6: Final answer
    x = 494,859.47

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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.