Home / 1,314,161.70-1,971,242.55-865,389.30

Finding the Fourth Proportional to 1,314,161.70, 1,971,242.55 and 865,389.30

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Solution

The fourth proportional to 1,314,161.70, 1,971,242.55 and 865,389.30 is: 1,298,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,161.70 : 1,971,242.55 = 865,389.30 : x
  2. Step 2: Convert to fraction form
    1,314,161.70/1,971,242.55 = 865,389.30/x
  3. Step 3: Cross multiply
    1,314,161.70x = 1,971,242.55 × 865,389.30
  4. Step 4: Simplify right side
    1,314,161.70x = 1,705,892,210,474.72
  5. Step 5: Solve for x
    x = 1,705,892,210,474.72/1,314,161.70
  6. Step 6: Final answer
    x = 1,298,083.95

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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.