Home / 1,421,004.81-2,131,650.69-461,420.29

Finding the Fourth Proportional to 1,421,004.81, 2,131,650.69 and 461,420.29

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Solution

The fourth proportional to 1,421,004.81, 2,131,650.69 and 461,420.29 is: 692,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,004.81 : 2,131,650.69 = 461,420.29 : x
  2. Step 2: Convert to fraction form
    1,421,004.81/2,131,650.69 = 461,420.29/x
  3. Step 3: Cross multiply
    1,421,004.81x = 2,131,650.69 × 461,420.29
  4. Step 4: Simplify right side
    1,421,004.81x = 983,586,879,558.50
  5. Step 5: Solve for x
    x = 983,586,879,558.50/1,421,004.81
  6. Step 6: Final answer
    x = 692,177.02

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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.