Home / 1,921,228.96-2,651,549.40-1,858,138.86

Finding the Fourth Proportional to 1,921,228.96, 2,651,549.40 and 1,858,138.86

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Solution

The fourth proportional to 1,921,228.96, 2,651,549.40 and 1,858,138.86 is: 2,564,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,228.96 : 2,651,549.40 = 1,858,138.86 : x
  2. Step 2: Convert to fraction form
    1,921,228.96/2,651,549.40 = 1,858,138.86/x
  3. Step 3: Cross multiply
    1,921,228.96x = 2,651,549.40 × 1,858,138.86
  4. Step 4: Simplify right side
    1,921,228.96x = 4,926,946,979,349.68
  5. Step 5: Solve for x
    x = 4,926,946,979,349.68/1,921,228.96
  6. Step 6: Final answer
    x = 2,564,476.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.