Home / 1,787,727.60-2,681,591.40-1,281,218.40

Finding the Fourth Proportional to 1,787,727.60, 2,681,591.40 and 1,281,218.40

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Solution

The fourth proportional to 1,787,727.60, 2,681,591.40 and 1,281,218.40 is: 1,921,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,727.60 : 2,681,591.40 = 1,281,218.40 : x
  2. Step 2: Convert to fraction form
    1,787,727.60/2,681,591.40 = 1,281,218.40/x
  3. Step 3: Cross multiply
    1,787,727.60x = 2,681,591.40 × 1,281,218.40
  4. Step 4: Simplify right side
    1,787,727.60x = 3,435,704,242,961.76
  5. Step 5: Solve for x
    x = 3,435,704,242,961.76/1,787,727.60
  6. Step 6: Final answer
    x = 1,921,827.60

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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.