Home / 1,078,981.08-1,488,771.61-620,006.97

Finding the Fourth Proportional to 1,078,981.08, 1,488,771.61 and 620,006.97

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Solution

The fourth proportional to 1,078,981.08, 1,488,771.61 and 620,006.97 is: 855,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,981.08 : 1,488,771.61 = 620,006.97 : x
  2. Step 2: Convert to fraction form
    1,078,981.08/1,488,771.61 = 620,006.97/x
  3. Step 3: Cross multiply
    1,078,981.08x = 1,488,771.61 × 620,006.97
  4. Step 4: Simplify right side
    1,078,981.08x = 923,048,778,971.00
  5. Step 5: Solve for x
    x = 923,048,778,971.00/1,078,981.08
  6. Step 6: Final answer
    x = 855,481.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.