Home / 446,948.80-670,423.20-313,979.20

Finding the Fourth Proportional to 446,948.80, 670,423.20 and 313,979.20

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Solution

The fourth proportional to 446,948.80, 670,423.20 and 313,979.20 is: 470,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,948.80 : 670,423.20 = 313,979.20 : x
  2. Step 2: Convert to fraction form
    446,948.80/670,423.20 = 313,979.20/x
  3. Step 3: Cross multiply
    446,948.80x = 670,423.20 × 313,979.20
  4. Step 4: Simplify right side
    446,948.80x = 210,498,939,997.44
  5. Step 5: Solve for x
    x = 210,498,939,997.44/446,948.80
  6. Step 6: Final answer
    x = 470,968.80

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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.