Home / 2,130,649.60-3,191,827.20-1,286,694.40

Finding the Fourth Proportional to 2,130,649.60, 3,191,827.20 and 1,286,694.40

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Solution

The fourth proportional to 2,130,649.60, 3,191,827.20 and 1,286,694.40 is: 1,927,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,649.60 : 3,191,827.20 = 1,286,694.40 : x
  2. Step 2: Convert to fraction form
    2,130,649.60/3,191,827.20 = 1,286,694.40/x
  3. Step 3: Cross multiply
    2,130,649.60x = 3,191,827.20 × 1,286,694.40
  4. Step 4: Simplify right side
    2,130,649.60x = 4,106,906,184,007.68
  5. Step 5: Solve for x
    x = 4,106,906,184,007.68/2,130,649.60
  6. Step 6: Final answer
    x = 1,927,537.12

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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.