Home / 3,415,209.60-5,128,719.30-1,820,886.60

Finding the Fourth Proportional to 3,415,209.60, 5,128,719.30 and 1,820,886.60

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Solution

The fourth proportional to 3,415,209.60, 5,128,719.30 and 1,820,886.60 is: 2,734,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415,209.60 : 5,128,719.30 = 1,820,886.60 : x
  2. Step 2: Convert to fraction form
    3,415,209.60/5,128,719.30 = 1,820,886.60/x
  3. Step 3: Cross multiply
    3,415,209.60x = 5,128,719.30 × 1,820,886.60
  4. Step 4: Simplify right side
    3,415,209.60x = 9,338,816,248,531.38
  5. Step 5: Solve for x
    x = 9,338,816,248,531.38/3,415,209.60
  6. Step 6: Final answer
    x = 2,734,478.21

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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.