Home / 2,740,459.80-4,110,689.70-1,320,659.40

Finding the Fourth Proportional to 2,740,459.80, 4,110,689.70 and 1,320,659.40

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Solution

The fourth proportional to 2,740,459.80, 4,110,689.70 and 1,320,659.40 is: 1,980,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740,459.80 : 4,110,689.70 = 1,320,659.40 : x
  2. Step 2: Convert to fraction form
    2,740,459.80/4,110,689.70 = 1,320,659.40/x
  3. Step 3: Cross multiply
    2,740,459.80x = 4,110,689.70 × 1,320,659.40
  4. Step 4: Simplify right side
    2,740,459.80x = 5,428,820,992,788.18
  5. Step 5: Solve for x
    x = 5,428,820,992,788.18/2,740,459.80
  6. Step 6: Final answer
    x = 1,980,989.10

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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.