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Finding the Fourth Proportional to 380,037.80, 570,056.70 and 308,874.53

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Solution

The fourth proportional to 380,037.80, 570,056.70 and 308,874.53 is: 463,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,037.80 : 570,056.70 = 308,874.53 : x
  2. Step 2: Convert to fraction form
    380,037.80/570,056.70 = 308,874.53/x
  3. Step 3: Cross multiply
    380,037.80x = 570,056.70 × 308,874.53
  4. Step 4: Simplify right side
    380,037.80x = 176,075,993,741.48
  5. Step 5: Solve for x
    x = 176,075,993,741.48/380,037.80
  6. Step 6: Final answer
    x = 463,311.79

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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.