Home / 1,992,890.40-2,989,335.60-731,210.10

Finding the Fourth Proportional to 1,992,890.40, 2,989,335.60 and 731,210.10

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Solution

The fourth proportional to 1,992,890.40, 2,989,335.60 and 731,210.10 is: 1,096,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,890.40 : 2,989,335.60 = 731,210.10 : x
  2. Step 2: Convert to fraction form
    1,992,890.40/2,989,335.60 = 731,210.10/x
  3. Step 3: Cross multiply
    1,992,890.40x = 2,989,335.60 × 731,210.10
  4. Step 4: Simplify right side
    1,992,890.40x = 2,185,832,383,009.56
  5. Step 5: Solve for x
    x = 2,185,832,383,009.56/1,992,890.40
  6. Step 6: Final answer
    x = 1,096,815.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.