Home / 1,228,698.83-1,843,878.23-429,987.30

Finding the Fourth Proportional to 1,228,698.83, 1,843,878.23 and 429,987.30

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Solution

The fourth proportional to 1,228,698.83, 1,843,878.23 and 429,987.30 is: 645,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,698.83 : 1,843,878.23 = 429,987.30 : x
  2. Step 2: Convert to fraction form
    1,228,698.83/1,843,878.23 = 429,987.30/x
  3. Step 3: Cross multiply
    1,228,698.83x = 1,843,878.23 × 429,987.30
  4. Step 4: Simplify right side
    1,228,698.83x = 792,844,212,427.09
  5. Step 5: Solve for x
    x = 792,844,212,427.09/1,228,698.83
  6. Step 6: Final answer
    x = 645,271.40

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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.