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Finding the Fourth Proportional to 507,571.55, 700,448.74 and 303,631.07

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Solution

The fourth proportional to 507,571.55, 700,448.74 and 303,631.07 is: 419,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,571.55 : 700,448.74 = 303,631.07 : x
  2. Step 2: Convert to fraction form
    507,571.55/700,448.74 = 303,631.07/x
  3. Step 3: Cross multiply
    507,571.55x = 700,448.74 × 303,631.07
  4. Step 4: Simplify right side
    507,571.55x = 212,678,000,406.35
  5. Step 5: Solve for x
    x = 212,678,000,406.35/507,571.55
  6. Step 6: Final answer
    x = 419,010.88

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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.