Home / 1,072,840.80-1,608,237.20-398,741.60

Finding the Fourth Proportional to 1,072,840.80, 1,608,237.20 and 398,741.60

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Solution

The fourth proportional to 1,072,840.80, 1,608,237.20 and 398,741.60 is: 597,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,840.80 : 1,608,237.20 = 398,741.60 : x
  2. Step 2: Convert to fraction form
    1,072,840.80/1,608,237.20 = 398,741.60/x
  3. Step 3: Cross multiply
    1,072,840.80x = 1,608,237.20 × 398,741.60
  4. Step 4: Simplify right side
    1,072,840.80x = 641,271,074,307.52
  5. Step 5: Solve for x
    x = 641,271,074,307.52/1,072,840.80
  6. Step 6: Final answer
    x = 597,731.81

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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.