Home / 890,921.74-1,336,779.97-410,891.44

Finding the Fourth Proportional to 890,921.74, 1,336,779.97 and 410,891.44

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Solution

The fourth proportional to 890,921.74, 1,336,779.97 and 410,891.44 is: 616,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,921.74 : 1,336,779.97 = 410,891.44 : x
  2. Step 2: Convert to fraction form
    890,921.74/1,336,779.97 = 410,891.44/x
  3. Step 3: Cross multiply
    890,921.74x = 1,336,779.97 × 410,891.44
  4. Step 4: Simplify right side
    890,921.74x = 549,271,446,836.46
  5. Step 5: Solve for x
    x = 549,271,446,836.46/890,921.74
  6. Step 6: Final answer
    x = 616,520.42

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1.5x scale

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.