Home / 878,211.02-1,211,930.96-475,803.02

Finding the Fourth Proportional to 878,211.02, 1,211,930.96 and 475,803.02

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Solution

The fourth proportional to 878,211.02, 1,211,930.96 and 475,803.02 is: 656,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,211.02 : 1,211,930.96 = 475,803.02 : x
  2. Step 2: Convert to fraction form
    878,211.02/1,211,930.96 = 475,803.02/x
  3. Step 3: Cross multiply
    878,211.02x = 1,211,930.96 × 475,803.02
  4. Step 4: Simplify right side
    878,211.02x = 576,640,410,799.50
  5. Step 5: Solve for x
    x = 576,640,410,799.50/878,211.02
  6. Step 6: Final answer
    x = 656,608.03

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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.