Home / 678,220.40-1,017,492.60-204,910.40

Finding the Fourth Proportional to 678,220.40, 1,017,492.60 and 204,910.40

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Solution

The fourth proportional to 678,220.40, 1,017,492.60 and 204,910.40 is: 307,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,220.40 : 1,017,492.60 = 204,910.40 : x
  2. Step 2: Convert to fraction form
    678,220.40/1,017,492.60 = 204,910.40/x
  3. Step 3: Cross multiply
    678,220.40x = 1,017,492.60 × 204,910.40
  4. Step 4: Simplify right side
    678,220.40x = 208,494,815,663.04
  5. Step 5: Solve for x
    x = 208,494,815,663.04/678,220.40
  6. Step 6: Final answer
    x = 307,414.54

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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.