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Finding the Fourth Proportional to 492,051.20, 738,076.80 and 373,078.40

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Solution

The fourth proportional to 492,051.20, 738,076.80 and 373,078.40 is: 559,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,051.20 : 738,076.80 = 373,078.40 : x
  2. Step 2: Convert to fraction form
    492,051.20/738,076.80 = 373,078.40/x
  3. Step 3: Cross multiply
    492,051.20x = 738,076.80 × 373,078.40
  4. Step 4: Simplify right side
    492,051.20x = 275,360,511,621.12
  5. Step 5: Solve for x
    x = 275,360,511,621.12/492,051.20
  6. Step 6: Final answer
    x = 559,617.60

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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.