Home / 874,899.20-1,312,348.80-313,860.80

Finding the Fourth Proportional to 874,899.20, 1,312,348.80 and 313,860.80

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Solution

The fourth proportional to 874,899.20, 1,312,348.80 and 313,860.80 is: 470,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,899.20 : 1,312,348.80 = 313,860.80 : x
  2. Step 2: Convert to fraction form
    874,899.20/1,312,348.80 = 313,860.80/x
  3. Step 3: Cross multiply
    874,899.20x = 1,312,348.80 × 313,860.80
  4. Step 4: Simplify right side
    874,899.20x = 411,894,844,247.04
  5. Step 5: Solve for x
    x = 411,894,844,247.04/874,899.20
  6. Step 6: Final answer
    x = 470,791.20

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Similar ratio
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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.