Home / 1,314,612.81-1,971,919.22-317,340.81

Finding the Fourth Proportional to 1,314,612.81, 1,971,919.22 and 317,340.81

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Solution

The fourth proportional to 1,314,612.81, 1,971,919.22 and 317,340.81 is: 476,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,612.81 : 1,971,919.22 = 317,340.81 : x
  2. Step 2: Convert to fraction form
    1,314,612.81/1,971,919.22 = 317,340.81/x
  3. Step 3: Cross multiply
    1,314,612.81x = 1,971,919.22 × 317,340.81
  4. Step 4: Simplify right side
    1,314,612.81x = 625,770,440,942.66
  5. Step 5: Solve for x
    x = 625,770,440,942.66/1,314,612.81
  6. Step 6: Final answer
    x = 476,011.22

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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.