Home / 439,529.09-659,831.94-289,894.55

Finding the Fourth Proportional to 439,529.09, 659,831.94 and 289,894.55

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Solution

The fourth proportional to 439,529.09, 659,831.94 and 289,894.55 is: 435,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,529.09 : 659,831.94 = 289,894.55 : x
  2. Step 2: Convert to fraction form
    439,529.09/659,831.94 = 289,894.55/x
  3. Step 3: Cross multiply
    439,529.09x = 659,831.94 × 289,894.55
  4. Step 4: Simplify right side
    439,529.09x = 191,281,680,022.77
  5. Step 5: Solve for x
    x = 191,281,680,022.77/439,529.09
  6. Step 6: Final answer
    x = 435,196.87

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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.