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Finding the Fourth Proportional to 399,317.26, 598,973.46 and 99,796.30

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Solution

The fourth proportional to 399,317.26, 598,973.46 and 99,796.30 is: 149,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,317.26 : 598,973.46 = 99,796.30 : x
  2. Step 2: Convert to fraction form
    399,317.26/598,973.46 = 99,796.30/x
  3. Step 3: Cross multiply
    399,317.26x = 598,973.46 × 99,796.30
  4. Step 4: Simplify right side
    399,317.26x = 59,775,335,106.20
  5. Step 5: Solve for x
    x = 59,775,335,106.20/399,317.26
  6. Step 6: Final answer
    x = 149,693.84

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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.