Home / 678,057.84-1,017,240.36-362,348.40

Finding the Fourth Proportional to 678,057.84, 1,017,240.36 and 362,348.40

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Solution

The fourth proportional to 678,057.84, 1,017,240.36 and 362,348.40 is: 543,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,057.84 : 1,017,240.36 = 362,348.40 : x
  2. Step 2: Convert to fraction form
    678,057.84/1,017,240.36 = 362,348.40/x
  3. Step 3: Cross multiply
    678,057.84x = 1,017,240.36 × 362,348.40
  4. Step 4: Simplify right side
    678,057.84x = 368,595,416,861.42
  5. Step 5: Solve for x
    x = 368,595,416,861.42/678,057.84
  6. Step 6: Final answer
    x = 543,604.68

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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.