Home / 1,213,702.05-1,821,365.69-503,730.78

Finding the Fourth Proportional to 1,213,702.05, 1,821,365.69 and 503,730.78

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Solution

The fourth proportional to 1,213,702.05, 1,821,365.69 and 503,730.78 is: 755,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,702.05 : 1,821,365.69 = 503,730.78 : x
  2. Step 2: Convert to fraction form
    1,213,702.05/1,821,365.69 = 503,730.78/x
  3. Step 3: Cross multiply
    1,213,702.05x = 1,821,365.69 × 503,730.78
  4. Step 4: Simplify right side
    1,213,702.05x = 917,477,950,340.16
  5. Step 5: Solve for x
    x = 917,477,950,340.16/1,213,702.05
  6. Step 6: Final answer
    x = 755,933.42

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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.