Home / 947,131.18-1,419,811.03-347,931.45

Finding the Fourth Proportional to 947,131.18, 1,419,811.03 and 347,931.45

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Solution

The fourth proportional to 947,131.18, 1,419,811.03 and 347,931.45 is: 521,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,131.18 : 1,419,811.03 = 347,931.45 : x
  2. Step 2: Convert to fraction form
    947,131.18/1,419,811.03 = 347,931.45/x
  3. Step 3: Cross multiply
    947,131.18x = 1,419,811.03 × 347,931.45
  4. Step 4: Simplify right side
    947,131.18x = 493,996,910,828.81
  5. Step 5: Solve for x
    x = 493,996,910,828.81/947,131.18
  6. Step 6: Final answer
    x = 521,571.80

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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.