Home / 897,503.06-1,238,552.49-489,604.78

Finding the Fourth Proportional to 897,503.06, 1,238,552.49 and 489,604.78

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Solution

The fourth proportional to 897,503.06, 1,238,552.49 and 489,604.78 is: 675,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,503.06 : 1,238,552.49 = 489,604.78 : x
  2. Step 2: Convert to fraction form
    897,503.06/1,238,552.49 = 489,604.78/x
  3. Step 3: Cross multiply
    897,503.06x = 1,238,552.49 × 489,604.78
  4. Step 4: Simplify right side
    897,503.06x = 606,401,210,744.12
  5. Step 5: Solve for x
    x = 606,401,210,744.12/897,503.06
  6. Step 6: Final answer
    x = 675,653.65

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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.