Home / 891,270.72-1,230,110.84-528,894.39

Finding the Fourth Proportional to 891,270.72, 1,230,110.84 and 528,894.39

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Solution

The fourth proportional to 891,270.72, 1,230,110.84 and 528,894.39 is: 729,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,270.72 : 1,230,110.84 = 528,894.39 : x
  2. Step 2: Convert to fraction form
    891,270.72/1,230,110.84 = 528,894.39/x
  3. Step 3: Cross multiply
    891,270.72x = 1,230,110.84 × 528,894.39
  4. Step 4: Simplify right side
    891,270.72x = 650,598,718,394.94
  5. Step 5: Solve for x
    x = 650,598,718,394.94/891,270.72
  6. Step 6: Final answer
    x = 729,967.57

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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.