Home / 1,955,451.60-2,931,427.80-1,281,855.60

Finding the Fourth Proportional to 1,955,451.60, 2,931,427.80 and 1,281,855.60

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Solution

The fourth proportional to 1,955,451.60, 2,931,427.80 and 1,281,855.60 is: 1,921,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,451.60 : 2,931,427.80 = 1,281,855.60 : x
  2. Step 2: Convert to fraction form
    1,955,451.60/2,931,427.80 = 1,281,855.60/x
  3. Step 3: Cross multiply
    1,955,451.60x = 2,931,427.80 × 1,281,855.60
  4. Step 4: Simplify right side
    1,955,451.60x = 3,757,667,141,425.68
  5. Step 5: Solve for x
    x = 3,757,667,141,425.68/1,955,451.60
  6. Step 6: Final answer
    x = 1,921,636.49

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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.