Home / 470,221.36-649,104.05-317,466.39

Finding the Fourth Proportional to 470,221.36, 649,104.05 and 317,466.39

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Solution

The fourth proportional to 470,221.36, 649,104.05 and 317,466.39 is: 438,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,221.36 : 649,104.05 = 317,466.39 : x
  2. Step 2: Convert to fraction form
    470,221.36/649,104.05 = 317,466.39/x
  3. Step 3: Cross multiply
    470,221.36x = 649,104.05 × 317,466.39
  4. Step 4: Simplify right side
    470,221.36x = 206,068,717,900.55
  5. Step 5: Solve for x
    x = 206,068,717,900.55/470,221.36
  6. Step 6: Final answer
    x = 438,237.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.