Home / 1,315,814.70-1,973,722.05-843,422.70

Finding the Fourth Proportional to 1,315,814.70, 1,973,722.05 and 843,422.70

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Solution

The fourth proportional to 1,315,814.70, 1,973,722.05 and 843,422.70 is: 1,265,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,814.70 : 1,973,722.05 = 843,422.70 : x
  2. Step 2: Convert to fraction form
    1,315,814.70/1,973,722.05 = 843,422.70/x
  3. Step 3: Cross multiply
    1,315,814.70x = 1,973,722.05 × 843,422.70
  4. Step 4: Simplify right side
    1,315,814.70x = 1,664,681,980,460.54
  5. Step 5: Solve for x
    x = 1,664,681,980,460.54/1,315,814.70
  6. Step 6: Final answer
    x = 1,265,134.05

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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.