Home / 833,356.15-1,149,971.78-489,206.05

Finding the Fourth Proportional to 833,356.15, 1,149,971.78 and 489,206.05

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Solution

The fourth proportional to 833,356.15, 1,149,971.78 and 489,206.05 is: 675,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,356.15 : 1,149,971.78 = 489,206.05 : x
  2. Step 2: Convert to fraction form
    833,356.15/1,149,971.78 = 489,206.05/x
  3. Step 3: Cross multiply
    833,356.15x = 1,149,971.78 × 489,206.05
  4. Step 4: Simplify right side
    833,356.15x = 562,573,150,453.36
  5. Step 5: Solve for x
    x = 562,573,150,453.36/833,356.15
  6. Step 6: Final answer
    x = 675,069.30

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1.5x scale

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.