Home / 992,364.98-1,489,039.82-393,312.88

Finding the Fourth Proportional to 992,364.98, 1,489,039.82 and 393,312.88

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Solution

The fourth proportional to 992,364.98, 1,489,039.82 and 393,312.88 is: 590,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,364.98 : 1,489,039.82 = 393,312.88 : x
  2. Step 2: Convert to fraction form
    992,364.98/1,489,039.82 = 393,312.88/x
  3. Step 3: Cross multiply
    992,364.98x = 1,489,039.82 × 393,312.88
  4. Step 4: Simplify right side
    992,364.98x = 585,658,530,627.12
  5. Step 5: Solve for x
    x = 585,658,530,627.12/992,364.98
  6. Step 6: Final answer
    x = 590,164.45

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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.