Home / 470,209.58-649,087.86-317,454.69

Finding the Fourth Proportional to 470,209.58, 649,087.86 and 317,454.69

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Solution

The fourth proportional to 470,209.58, 649,087.86 and 317,454.69 is: 438,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,209.58 : 649,087.86 = 317,454.69 : x
  2. Step 2: Convert to fraction form
    470,209.58/649,087.86 = 317,454.69/x
  3. Step 3: Cross multiply
    470,209.58x = 649,087.86 × 317,454.69
  4. Step 4: Simplify right side
    470,209.58x = 206,055,985,379.06
  5. Step 5: Solve for x
    x = 206,055,985,379.06/470,209.58
  6. Step 6: Final answer
    x = 438,221.58

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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.