Home / 420,009.98-629,817.94-153,584.20

Finding the Fourth Proportional to 420,009.98, 629,817.94 and 153,584.20

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Solution

The fourth proportional to 420,009.98, 629,817.94 and 153,584.20 is: 230,304.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,009.98 : 629,817.94 = 153,584.20 : x
  2. Step 2: Convert to fraction form
    420,009.98/629,817.94 = 153,584.20/x
  3. Step 3: Cross multiply
    420,009.98x = 629,817.94 × 153,584.20
  4. Step 4: Simplify right side
    420,009.98x = 96,730,084,460.55
  5. Step 5: Solve for x
    x = 96,730,084,460.55/420,009.98
  6. Step 6: Final answer
    x = 230,304.25

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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.