Home / 1,219,079.55-1,828,739.61-420,255.93

Finding the Fourth Proportional to 1,219,079.55, 1,828,739.61 and 420,255.93

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Solution

The fourth proportional to 1,219,079.55, 1,828,739.61 and 420,255.93 is: 630,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,079.55 : 1,828,739.61 = 420,255.93 : x
  2. Step 2: Convert to fraction form
    1,219,079.55/1,828,739.61 = 420,255.93/x
  3. Step 3: Cross multiply
    1,219,079.55x = 1,828,739.61 × 420,255.93
  4. Step 4: Simplify right side
    1,219,079.55x = 768,538,665,528.39
  5. Step 5: Solve for x
    x = 768,538,665,528.39/1,219,079.55
  6. Step 6: Final answer
    x = 630,425.36

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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.