Home / 829,401.25-1,244,401.39-289,737.27

Finding the Fourth Proportional to 829,401.25, 1,244,401.39 and 289,737.27

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Solution

The fourth proportional to 829,401.25, 1,244,401.39 and 289,737.27 is: 434,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,401.25 : 1,244,401.39 = 289,737.27 : x
  2. Step 2: Convert to fraction form
    829,401.25/1,244,401.39 = 289,737.27/x
  3. Step 3: Cross multiply
    829,401.25x = 1,244,401.39 × 289,737.27
  4. Step 4: Simplify right side
    829,401.25x = 360,549,455,300.80
  5. Step 5: Solve for x
    x = 360,549,455,300.80/829,401.25
  6. Step 6: Final answer
    x = 434,710.53

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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.