Home / 2,087,078.40-3,128,795.10-808,558.20

Finding the Fourth Proportional to 2,087,078.40, 3,128,795.10 and 808,558.20

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Solution

The fourth proportional to 2,087,078.40, 3,128,795.10 and 808,558.20 is: 1,212,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,078.40 : 3,128,795.10 = 808,558.20 : x
  2. Step 2: Convert to fraction form
    2,087,078.40/3,128,795.10 = 808,558.20/x
  3. Step 3: Cross multiply
    2,087,078.40x = 3,128,795.10 × 808,558.20
  4. Step 4: Simplify right side
    2,087,078.40x = 2,529,812,934,224.82
  5. Step 5: Solve for x
    x = 2,529,812,934,224.82/2,087,078.40
  6. Step 6: Final answer
    x = 1,212,131.24

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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.