Home / 1,219,054.14-1,828,701.51-420,230.52

Finding the Fourth Proportional to 1,219,054.14, 1,828,701.51 and 420,230.52

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Solution

The fourth proportional to 1,219,054.14, 1,828,701.51 and 420,230.52 is: 630,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,054.14 : 1,828,701.51 = 420,230.52 : x
  2. Step 2: Convert to fraction form
    1,219,054.14/1,828,701.51 = 420,230.52/x
  3. Step 3: Cross multiply
    1,219,054.14x = 1,828,701.51 × 420,230.52
  4. Step 4: Simplify right side
    1,219,054.14x = 768,476,186,472.09
  5. Step 5: Solve for x
    x = 768,476,186,472.09/1,219,054.14
  6. Step 6: Final answer
    x = 630,387.25

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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.