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Finding the Fourth Proportional to 628,369.37, 942,699.85 and 207,619.73

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Solution

The fourth proportional to 628,369.37, 942,699.85 and 207,619.73 is: 311,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,369.37 : 942,699.85 = 207,619.73 : x
  2. Step 2: Convert to fraction form
    628,369.37/942,699.85 = 207,619.73/x
  3. Step 3: Cross multiply
    628,369.37x = 942,699.85 × 207,619.73
  4. Step 4: Simplify right side
    628,369.37x = 195,723,088,328.04
  5. Step 5: Solve for x
    x = 195,723,088,328.04/628,369.37
  6. Step 6: Final answer
    x = 311,477.77

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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.