Home / 470,206.15-649,083.11-317,451.25

Finding the Fourth Proportional to 470,206.15, 649,083.11 and 317,451.25

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Solution

The fourth proportional to 470,206.15, 649,083.11 and 317,451.25 is: 438,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,206.15 : 649,083.11 = 317,451.25 : x
  2. Step 2: Convert to fraction form
    470,206.15/649,083.11 = 317,451.25/x
  3. Step 3: Cross multiply
    470,206.15x = 649,083.11 × 317,451.25
  4. Step 4: Simplify right side
    470,206.15x = 206,052,239,790.72
  5. Step 5: Solve for x
    x = 206,052,239,790.72/470,206.15
  6. Step 6: Final answer
    x = 438,216.82

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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.