Home / 2,114,312.40-3,171,468.60-1,218,517.20

Finding the Fourth Proportional to 2,114,312.40, 3,171,468.60 and 1,218,517.20

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Solution

The fourth proportional to 2,114,312.40, 3,171,468.60 and 1,218,517.20 is: 1,827,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114,312.40 : 3,171,468.60 = 1,218,517.20 : x
  2. Step 2: Convert to fraction form
    2,114,312.40/3,171,468.60 = 1,218,517.20/x
  3. Step 3: Cross multiply
    2,114,312.40x = 3,171,468.60 × 1,218,517.20
  4. Step 4: Simplify right side
    2,114,312.40x = 3,864,489,038,359.92
  5. Step 5: Solve for x
    x = 3,864,489,038,359.92/2,114,312.40
  6. Step 6: Final answer
    x = 1,827,775.80

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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.