Home / 1,316,102.90-1,971,201.90-1,286,578.40

Finding the Fourth Proportional to 1,316,102.90, 1,971,201.90 and 1,286,578.40

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Solution

The fourth proportional to 1,316,102.90, 1,971,201.90 and 1,286,578.40 is: 1,926,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,102.90 : 1,971,201.90 = 1,286,578.40 : x
  2. Step 2: Convert to fraction form
    1,316,102.90/1,971,201.90 = 1,286,578.40/x
  3. Step 3: Cross multiply
    1,316,102.90x = 1,971,201.90 × 1,286,578.40
  4. Step 4: Simplify right side
    1,316,102.90x = 2,536,105,786,578.96
  5. Step 5: Solve for x
    x = 2,536,105,786,578.96/1,316,102.90
  6. Step 6: Final answer
    x = 1,926,981.38

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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.