Home / 939,311.84-1,296,250.81-509,591.86

Finding the Fourth Proportional to 939,311.84, 1,296,250.81 and 509,591.86

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Solution

The fourth proportional to 939,311.84, 1,296,250.81 and 509,591.86 is: 703,237.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,311.84 : 1,296,250.81 = 509,591.86 : x
  2. Step 2: Convert to fraction form
    939,311.84/1,296,250.81 = 509,591.86/x
  3. Step 3: Cross multiply
    939,311.84x = 1,296,250.81 × 509,591.86
  4. Step 4: Simplify right side
    939,311.84x = 660,558,854,813.15
  5. Step 5: Solve for x
    x = 660,558,854,813.15/939,311.84
  6. Step 6: Final answer
    x = 703,237.02

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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.