Home / 1,078,715.61-1,618,795.73-447,630.03

Finding the Fourth Proportional to 1,078,715.61, 1,618,795.73 and 447,630.03

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Solution

The fourth proportional to 1,078,715.61, 1,618,795.73 and 447,630.03 is: 671,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,715.61 : 1,618,795.73 = 447,630.03 : x
  2. Step 2: Convert to fraction form
    1,078,715.61/1,618,795.73 = 447,630.03/x
  3. Step 3: Cross multiply
    1,078,715.61x = 1,618,795.73 × 447,630.03
  4. Step 4: Simplify right side
    1,078,715.61x = 724,621,582,302.85
  5. Step 5: Solve for x
    x = 724,621,582,302.85/1,078,715.61
  6. Step 6: Final answer
    x = 671,744.78

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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.