Home / 672,843.74-1,007,626.10-445,000.55

Finding the Fourth Proportional to 672,843.74, 1,007,626.10 and 445,000.55

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Solution

The fourth proportional to 672,843.74, 1,007,626.10 and 445,000.55 is: 666,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,843.74 : 1,007,626.10 = 445,000.55 : x
  2. Step 2: Convert to fraction form
    672,843.74/1,007,626.10 = 445,000.55/x
  3. Step 3: Cross multiply
    672,843.74x = 1,007,626.10 × 445,000.55
  4. Step 4: Simplify right side
    672,843.74x = 448,394,168,694.36
  5. Step 5: Solve for x
    x = 448,394,168,694.36/672,843.74
  6. Step 6: Final answer
    x = 666,416.50

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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.