Home / 891,553.50-1,230,365.43-489,145.50

Finding the Fourth Proportional to 891,553.50, 1,230,365.43 and 489,145.50

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Solution

The fourth proportional to 891,553.50, 1,230,365.43 and 489,145.50 is: 675,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,553.50 : 1,230,365.43 = 489,145.50 : x
  2. Step 2: Convert to fraction form
    891,553.50/1,230,365.43 = 489,145.50/x
  3. Step 3: Cross multiply
    891,553.50x = 1,230,365.43 × 489,145.50
  4. Step 4: Simplify right side
    891,553.50x = 601,827,713,440.07
  5. Step 5: Solve for x
    x = 601,827,713,440.07/891,553.50
  6. Step 6: Final answer
    x = 675,032.64

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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.