Home / 1,219,065.16-1,828,718.04-420,241.52

Finding the Fourth Proportional to 1,219,065.16, 1,828,718.04 and 420,241.52

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Solution

The fourth proportional to 1,219,065.16, 1,828,718.04 and 420,241.52 is: 630,403.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,065.16 : 1,828,718.04 = 420,241.52 : x
  2. Step 2: Convert to fraction form
    1,219,065.16/1,828,718.04 = 420,241.52/x
  3. Step 3: Cross multiply
    1,219,065.16x = 1,828,718.04 × 420,241.52
  4. Step 4: Simplify right side
    1,219,065.16x = 768,503,248,781.02
  5. Step 5: Solve for x
    x = 768,503,248,781.02/1,219,065.16
  6. Step 6: Final answer
    x = 630,403.75

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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.