Home / 808,211.90-1,214,067.45-778,468.70

Finding the Fourth Proportional to 808,211.90, 1,214,067.45 and 778,468.70

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Solution

The fourth proportional to 808,211.90, 1,214,067.45 and 778,468.70 is: 1,169,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,211.90 : 1,214,067.45 = 778,468.70 : x
  2. Step 2: Convert to fraction form
    808,211.90/1,214,067.45 = 778,468.70/x
  3. Step 3: Cross multiply
    808,211.90x = 1,214,067.45 × 778,468.70
  4. Step 4: Simplify right side
    808,211.90x = 945,113,509,513.82
  5. Step 5: Solve for x
    x = 945,113,509,513.82/808,211.90
  6. Step 6: Final answer
    x = 1,169,388.26

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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.