Home / 1,312,318.27-1,968,290.52-413,643.21

Finding the Fourth Proportional to 1,312,318.27, 1,968,290.52 and 413,643.21

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Solution

The fourth proportional to 1,312,318.27, 1,968,290.52 and 413,643.21 is: 620,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,318.27 : 1,968,290.52 = 413,643.21 : x
  2. Step 2: Convert to fraction form
    1,312,318.27/1,968,290.52 = 413,643.21/x
  3. Step 3: Cross multiply
    1,312,318.27x = 1,968,290.52 × 413,643.21
  4. Step 4: Simplify right side
    1,312,318.27x = 814,170,008,905.37
  5. Step 5: Solve for x
    x = 814,170,008,905.37/1,312,318.27
  6. Step 6: Final answer
    x = 620,405.91

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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.