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Finding the Fourth Proportional to 670,591.80, 925,190.10 and 380,172.24

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Solution

The fourth proportional to 670,591.80, 925,190.10 and 380,172.24 is: 524,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,591.80 : 925,190.10 = 380,172.24 : x
  2. Step 2: Convert to fraction form
    670,591.80/925,190.10 = 380,172.24/x
  3. Step 3: Cross multiply
    670,591.80x = 925,190.10 × 380,172.24
  4. Step 4: Simplify right side
    670,591.80x = 351,731,592,742.82
  5. Step 5: Solve for x
    x = 351,731,592,742.82/670,591.80
  6. Step 6: Final answer
    x = 524,509.24

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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.