Home / 470,209.23-649,087.38-317,454.35

Finding the Fourth Proportional to 470,209.23, 649,087.38 and 317,454.35

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Solution

The fourth proportional to 470,209.23, 649,087.38 and 317,454.35 is: 438,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,209.23 : 649,087.38 = 317,454.35 : x
  2. Step 2: Convert to fraction form
    470,209.23/649,087.38 = 317,454.35/x
  3. Step 3: Cross multiply
    470,209.23x = 649,087.38 × 317,454.35
  4. Step 4: Simplify right side
    470,209.23x = 206,055,609,065.67
  5. Step 5: Solve for x
    x = 206,055,609,065.67/470,209.23
  6. Step 6: Final answer
    x = 438,221.11

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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.