Home / 1,078,738.10-1,618,690.35-447,715.70

Finding the Fourth Proportional to 1,078,738.10, 1,618,690.35 and 447,715.70

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Solution

The fourth proportional to 1,078,738.10, 1,618,690.35 and 447,715.70 is: 671,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,738.10 : 1,618,690.35 = 447,715.70 : x
  2. Step 2: Convert to fraction form
    1,078,738.10/1,618,690.35 = 447,715.70/x
  3. Step 3: Cross multiply
    1,078,738.10x = 1,618,690.35 × 447,715.70
  4. Step 4: Simplify right side
    1,078,738.10x = 724,713,083,133.50
  5. Step 5: Solve for x
    x = 724,713,083,133.50/1,078,738.10
  6. Step 6: Final answer
    x = 671,815.60

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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.