Home / 947,270-1,421,606.36-448,635.44

Finding the Fourth Proportional to 947,270, 1,421,606.36 and 448,635.44

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Solution

The fourth proportional to 947,270, 1,421,606.36 and 448,635.44 is: 673,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,270 : 1,421,606.36 = 448,635.44 : x
  2. Step 2: Convert to fraction form
    947,270/1,421,606.36 = 448,635.44/x
  3. Step 3: Cross multiply
    947,270x = 1,421,606.36 × 448,635.44
  4. Step 4: Simplify right side
    947,270x = 637,782,994,825.40
  5. Step 5: Solve for x
    x = 637,782,994,825.40/947,270
  6. Step 6: Final answer
    x = 673,285.33

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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.