Home / 1,387,929.16-2,081,908.14-489,203.44

Finding the Fourth Proportional to 1,387,929.16, 2,081,908.14 and 489,203.44

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Solution

The fourth proportional to 1,387,929.16, 2,081,908.14 and 489,203.44 is: 733,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,929.16 : 2,081,908.14 = 489,203.44 : x
  2. Step 2: Convert to fraction form
    1,387,929.16/2,081,908.14 = 489,203.44/x
  3. Step 3: Cross multiply
    1,387,929.16x = 2,081,908.14 × 489,203.44
  4. Step 4: Simplify right side
    1,387,929.16x = 1,018,476,623,852.00
  5. Step 5: Solve for x
    x = 1,018,476,623,852.00/1,387,929.16
  6. Step 6: Final answer
    x = 733,810.24

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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.