Home / 881,181.54-1,216,090.62-499,211.46

Finding the Fourth Proportional to 881,181.54, 1,216,090.62 and 499,211.46

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Solution

The fourth proportional to 881,181.54, 1,216,090.62 and 499,211.46 is: 688,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,181.54 : 1,216,090.62 = 499,211.46 : x
  2. Step 2: Convert to fraction form
    881,181.54/1,216,090.62 = 499,211.46/x
  3. Step 3: Cross multiply
    881,181.54x = 1,216,090.62 × 499,211.46
  4. Step 4: Simplify right side
    881,181.54x = 607,086,373,902.51
  5. Step 5: Solve for x
    x = 607,086,373,902.51/881,181.54
  6. Step 6: Final answer
    x = 688,945.86

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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.