Home / 1,078,707.61-1,618,783.76-447,622.03

Finding the Fourth Proportional to 1,078,707.61, 1,618,783.76 and 447,622.03

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Solution

The fourth proportional to 1,078,707.61, 1,618,783.76 and 447,622.03 is: 671,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,707.61 : 1,618,783.76 = 447,622.03 : x
  2. Step 2: Convert to fraction form
    1,078,707.61/1,618,783.76 = 447,622.03/x
  3. Step 3: Cross multiply
    1,078,707.61x = 1,618,783.76 × 447,622.03
  4. Step 4: Simplify right side
    1,078,707.61x = 724,603,272,782.23
  5. Step 5: Solve for x
    x = 724,603,272,782.23/1,078,707.61
  6. Step 6: Final answer
    x = 671,732.79

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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.