Home / 1,219,052.14-1,828,698.51-420,228.52

Finding the Fourth Proportional to 1,219,052.14, 1,828,698.51 and 420,228.52

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Solution

The fourth proportional to 1,219,052.14, 1,828,698.51 and 420,228.52 is: 630,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,052.14 : 1,828,698.51 = 420,228.52 : x
  2. Step 2: Convert to fraction form
    1,219,052.14/1,828,698.51 = 420,228.52/x
  3. Step 3: Cross multiply
    1,219,052.14x = 1,828,698.51 × 420,228.52
  4. Step 4: Simplify right side
    1,219,052.14x = 768,471,268,383.51
  5. Step 5: Solve for x
    x = 768,471,268,383.51/1,219,052.14
  6. Step 6: Final answer
    x = 630,384.25

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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.