Home / 2,747,809.20-4,120,547.40-1,328,300.40

Finding the Fourth Proportional to 2,747,809.20, 4,120,547.40 and 1,328,300.40

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Solution

The fourth proportional to 2,747,809.20, 4,120,547.40 and 1,328,300.40 is: 1,991,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747,809.20 : 4,120,547.40 = 1,328,300.40 : x
  2. Step 2: Convert to fraction form
    2,747,809.20/4,120,547.40 = 1,328,300.40/x
  3. Step 3: Cross multiply
    2,747,809.20x = 4,120,547.40 × 1,328,300.40
  4. Step 4: Simplify right side
    2,747,809.20x = 5,473,324,759,638.96
  5. Step 5: Solve for x
    x = 5,473,324,759,638.96/2,747,809.20
  6. Step 6: Final answer
    x = 1,991,886.76

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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.