Home / 992,453.70-1,489,069.35-393,312.90

Finding the Fourth Proportional to 992,453.70, 1,489,069.35 and 393,312.90

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Solution

The fourth proportional to 992,453.70, 1,489,069.35 and 393,312.90 is: 590,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,453.70 : 1,489,069.35 = 393,312.90 : x
  2. Step 2: Convert to fraction form
    992,453.70/1,489,069.35 = 393,312.90/x
  3. Step 3: Cross multiply
    992,453.70x = 1,489,069.35 × 393,312.90
  4. Step 4: Simplify right side
    992,453.70x = 585,670,184,349.62
  5. Step 5: Solve for x
    x = 585,670,184,349.62/992,453.70
  6. Step 6: Final answer
    x = 590,123.43

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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.