Home / 1,313,778.40-1,971,445.20-865,794.40

Finding the Fourth Proportional to 1,313,778.40, 1,971,445.20 and 865,794.40

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Solution

The fourth proportional to 1,313,778.40, 1,971,445.20 and 865,794.40 is: 1,299,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,778.40 : 1,971,445.20 = 865,794.40 : x
  2. Step 2: Convert to fraction form
    1,313,778.40/1,971,445.20 = 865,794.40/x
  3. Step 3: Cross multiply
    1,313,778.40x = 1,971,445.20 × 865,794.40
  4. Step 4: Simplify right side
    1,313,778.40x = 1,706,866,214,066.88
  5. Step 5: Solve for x
    x = 1,706,866,214,066.88/1,313,778.40
  6. Step 6: Final answer
    x = 1,299,204.05

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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.