Home / 3,280,784.80-4,921,868.40-1,386,551.20

Finding the Fourth Proportional to 3,280,784.80, 4,921,868.40 and 1,386,551.20

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Solution

The fourth proportional to 3,280,784.80, 4,921,868.40 and 1,386,551.20 is: 2,080,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,784.80 : 4,921,868.40 = 1,386,551.20 : x
  2. Step 2: Convert to fraction form
    3,280,784.80/4,921,868.40 = 1,386,551.20/x
  3. Step 3: Cross multiply
    3,280,784.80x = 4,921,868.40 × 1,386,551.20
  4. Step 4: Simplify right side
    3,280,784.80x = 6,824,422,536,262.08
  5. Step 5: Solve for x
    x = 6,824,422,536,262.08/3,280,784.80
  6. Step 6: Final answer
    x = 2,080,118.92

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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.