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Finding the Fourth Proportional to 507,205.62, 760,950.63 and 203,812.86

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Solution

The fourth proportional to 507,205.62, 760,950.63 and 203,812.86 is: 305,776.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,205.62 : 760,950.63 = 203,812.86 : x
  2. Step 2: Convert to fraction form
    507,205.62/760,950.63 = 203,812.86/x
  3. Step 3: Cross multiply
    507,205.62x = 760,950.63 × 203,812.86
  4. Step 4: Simplify right side
    507,205.62x = 155,091,524,219.10
  5. Step 5: Solve for x
    x = 155,091,524,219.10/507,205.62
  6. Step 6: Final answer
    x = 305,776.43

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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.