Home / 492,079.20-738,080.40-192,501.60

Finding the Fourth Proportional to 492,079.20, 738,080.40 and 192,501.60

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Solution

The fourth proportional to 492,079.20, 738,080.40 and 192,501.60 is: 288,737.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,079.20 : 738,080.40 = 192,501.60 : x
  2. Step 2: Convert to fraction form
    492,079.20/738,080.40 = 192,501.60/x
  3. Step 3: Cross multiply
    492,079.20x = 738,080.40 × 192,501.60
  4. Step 4: Simplify right side
    492,079.20x = 142,081,657,928.64
  5. Step 5: Solve for x
    x = 142,081,657,928.64/492,079.20
  6. Step 6: Final answer
    x = 288,737.38

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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.