Home / 1,421,008.60-2,131,415.70-461,450.20

Finding the Fourth Proportional to 1,421,008.60, 2,131,415.70 and 461,450.20

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Solution

The fourth proportional to 1,421,008.60, 2,131,415.70 and 461,450.20 is: 692,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,008.60 : 2,131,415.70 = 461,450.20 : x
  2. Step 2: Convert to fraction form
    1,421,008.60/2,131,415.70 = 461,450.20/x
  3. Step 3: Cross multiply
    1,421,008.60x = 2,131,415.70 × 461,450.20
  4. Step 4: Simplify right side
    1,421,008.60x = 983,542,201,048.14
  5. Step 5: Solve for x
    x = 983,542,201,048.14/1,421,008.60
  6. Step 6: Final answer
    x = 692,143.74

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1.5x scale

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.