Home / 919,420.88-1,378,861.88-358,321.36

Finding the Fourth Proportional to 919,420.88, 1,378,861.88 and 358,321.36

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Solution

The fourth proportional to 919,420.88, 1,378,861.88 and 358,321.36 is: 537,377.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,420.88 : 1,378,861.88 = 358,321.36 : x
  2. Step 2: Convert to fraction form
    919,420.88/1,378,861.88 = 358,321.36/x
  3. Step 3: Cross multiply
    919,420.88x = 1,378,861.88 × 358,321.36
  4. Step 4: Simplify right side
    919,420.88x = 494,075,664,093.76
  5. Step 5: Solve for x
    x = 494,075,664,093.76/919,420.88
  6. Step 6: Final answer
    x = 537,377.03

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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.