Home / 1,285,852.47-1,929,207.47-855,267.44

Finding the Fourth Proportional to 1,285,852.47, 1,929,207.47 and 855,267.44

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Solution

The fourth proportional to 1,285,852.47, 1,929,207.47 and 855,267.44 is: 1,283,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,852.47 : 1,929,207.47 = 855,267.44 : x
  2. Step 2: Convert to fraction form
    1,285,852.47/1,929,207.47 = 855,267.44/x
  3. Step 3: Cross multiply
    1,285,852.47x = 1,929,207.47 × 855,267.44
  4. Step 4: Simplify right side
    1,285,852.47x = 1,649,988,334,095.78
  5. Step 5: Solve for x
    x = 1,649,988,334,095.78/1,285,852.47
  6. Step 6: Final answer
    x = 1,283,186.35

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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.