Home / 670,915.20-1,006,081.20-221,462.40

Finding the Fourth Proportional to 670,915.20, 1,006,081.20 and 221,462.40

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Solution

The fourth proportional to 670,915.20, 1,006,081.20 and 221,462.40 is: 332,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,915.20 : 1,006,081.20 = 221,462.40 : x
  2. Step 2: Convert to fraction form
    670,915.20/1,006,081.20 = 221,462.40/x
  3. Step 3: Cross multiply
    670,915.20x = 1,006,081.20 × 221,462.40
  4. Step 4: Simplify right side
    670,915.20x = 222,809,157,146.88
  5. Step 5: Solve for x
    x = 222,809,157,146.88/670,915.20
  6. Step 6: Final answer
    x = 332,097.35

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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.