Home / 739,426.70-1,109,136.45-289,829.90

Finding the Fourth Proportional to 739,426.70, 1,109,136.45 and 289,829.90

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Solution

The fourth proportional to 739,426.70, 1,109,136.45 and 289,829.90 is: 434,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,426.70 : 1,109,136.45 = 289,829.90 : x
  2. Step 2: Convert to fraction form
    739,426.70/1,109,136.45 = 289,829.90/x
  3. Step 3: Cross multiply
    739,426.70x = 1,109,136.45 × 289,829.90
  4. Step 4: Simplify right side
    739,426.70x = 321,460,906,389.86
  5. Step 5: Solve for x
    x = 321,460,906,389.86/739,426.70
  6. Step 6: Final answer
    x = 434,743.44

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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.