Home / 818,825.91-1,228,353.71-286,225.80

Finding the Fourth Proportional to 818,825.91, 1,228,353.71 and 286,225.80

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Solution

The fourth proportional to 818,825.91, 1,228,353.71 and 286,225.80 is: 429,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,825.91 : 1,228,353.71 = 286,225.80 : x
  2. Step 2: Convert to fraction form
    818,825.91/1,228,353.71 = 286,225.80/x
  3. Step 3: Cross multiply
    818,825.91x = 1,228,353.71 × 286,225.80
  4. Step 4: Simplify right side
    818,825.91x = 351,586,525,809.77
  5. Step 5: Solve for x
    x = 351,586,525,809.77/818,825.91
  6. Step 6: Final answer
    x = 429,378.85

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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.