Home / 881,222.16-1,216,083.60-499,321.76

Finding the Fourth Proportional to 881,222.16, 1,216,083.60 and 499,321.76

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Solution

The fourth proportional to 881,222.16, 1,216,083.60 and 499,321.76 is: 689,062.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,222.16 : 1,216,083.60 = 499,321.76 : x
  2. Step 2: Convert to fraction form
    881,222.16/1,216,083.60 = 499,321.76/x
  3. Step 3: Cross multiply
    881,222.16x = 1,216,083.60 × 499,321.76
  4. Step 4: Simplify right side
    881,222.16x = 607,217,003,459.14
  5. Step 5: Solve for x
    x = 607,217,003,459.14/881,222.16
  6. Step 6: Final answer
    x = 689,062.34

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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.