Home / 1,312,391.90-1,968,862.46-554,235.54

Finding the Fourth Proportional to 1,312,391.90, 1,968,862.46 and 554,235.54

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Solution

The fourth proportional to 1,312,391.90, 1,968,862.46 and 554,235.54 is: 831,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,391.90 : 1,968,862.46 = 554,235.54 : x
  2. Step 2: Convert to fraction form
    1,312,391.90/1,968,862.46 = 554,235.54/x
  3. Step 3: Cross multiply
    1,312,391.90x = 1,968,862.46 × 554,235.54
  4. Step 4: Simplify right side
    1,312,391.90x = 1,091,213,545,932.65
  5. Step 5: Solve for x
    x = 1,091,213,545,932.65/1,312,391.90
  6. Step 6: Final answer
    x = 831,469.28

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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.