Home / 850,136.48-1,275,528.72-317,895.20

Finding the Fourth Proportional to 850,136.48, 1,275,528.72 and 317,895.20

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Solution

The fourth proportional to 850,136.48, 1,275,528.72 and 317,895.20 is: 476,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,136.48 : 1,275,528.72 = 317,895.20 : x
  2. Step 2: Convert to fraction form
    850,136.48/1,275,528.72 = 317,895.20/x
  3. Step 3: Cross multiply
    850,136.48x = 1,275,528.72 × 317,895.20
  4. Step 4: Simplify right side
    850,136.48x = 405,484,457,550.14
  5. Step 5: Solve for x
    x = 405,484,457,550.14/850,136.48
  6. Step 6: Final answer
    x = 476,963.95

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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.