Home / 670,136.79-1,003,761.71-314,618.07

Finding the Fourth Proportional to 670,136.79, 1,003,761.71 and 314,618.07

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Solution

The fourth proportional to 670,136.79, 1,003,761.71 and 314,618.07 is: 471,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,136.79 : 1,003,761.71 = 314,618.07 : x
  2. Step 2: Convert to fraction form
    670,136.79/1,003,761.71 = 314,618.07/x
  3. Step 3: Cross multiply
    670,136.79x = 1,003,761.71 × 314,618.07
  4. Step 4: Simplify right side
    670,136.79x = 315,801,570,367.01
  5. Step 5: Solve for x
    x = 315,801,570,367.01/670,136.79
  6. Step 6: Final answer
    x = 471,249.42

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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.