Home / 859,934.10-1,289,901.15-298,968.60

Finding the Fourth Proportional to 859,934.10, 1,289,901.15 and 298,968.60

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Solution

The fourth proportional to 859,934.10, 1,289,901.15 and 298,968.60 is: 448,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,934.10 : 1,289,901.15 = 298,968.60 : x
  2. Step 2: Convert to fraction form
    859,934.10/1,289,901.15 = 298,968.60/x
  3. Step 3: Cross multiply
    859,934.10x = 1,289,901.15 × 298,968.60
  4. Step 4: Simplify right side
    859,934.10x = 385,639,940,953.89
  5. Step 5: Solve for x
    x = 385,639,940,953.89/859,934.10
  6. Step 6: Final answer
    x = 448,452.90

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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.