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Finding the Fourth Proportional to 880,357.80, 1,320,147.90 and 347,701.80

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Solution

The fourth proportional to 880,357.80, 1,320,147.90 and 347,701.80 is: 521,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,357.80 : 1,320,147.90 = 347,701.80 : x
  2. Step 2: Convert to fraction form
    880,357.80/1,320,147.90 = 347,701.80/x
  3. Step 3: Cross multiply
    880,357.80x = 1,320,147.90 × 347,701.80
  4. Step 4: Simplify right side
    880,357.80x = 459,017,801,096.22
  5. Step 5: Solve for x
    x = 459,017,801,096.22/880,357.80
  6. Step 6: Final answer
    x = 521,399.14

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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.