Home / 890,735.70-1,336,103.55-678,159.30

Finding the Fourth Proportional to 890,735.70, 1,336,103.55 and 678,159.30

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Solution

The fourth proportional to 890,735.70, 1,336,103.55 and 678,159.30 is: 1,017,238.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,735.70 : 1,336,103.55 = 678,159.30 : x
  2. Step 2: Convert to fraction form
    890,735.70/1,336,103.55 = 678,159.30/x
  3. Step 3: Cross multiply
    890,735.70x = 1,336,103.55 × 678,159.30
  4. Step 4: Simplify right side
    890,735.70x = 906,091,048,195.52
  5. Step 5: Solve for x
    x = 906,091,048,195.52/890,735.70
  6. Step 6: Final answer
    x = 1,017,238.95

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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.