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Finding the Fourth Proportional to 531,957.98, 734,100.93 and 290,240.42

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Solution

The fourth proportional to 531,957.98, 734,100.93 and 290,240.42 is: 400,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,957.98 : 734,100.93 = 290,240.42 : x
  2. Step 2: Convert to fraction form
    531,957.98/734,100.93 = 290,240.42/x
  3. Step 3: Cross multiply
    531,957.98x = 734,100.93 × 290,240.42
  4. Step 4: Simplify right side
    531,957.98x = 213,065,758,575.09
  5. Step 5: Solve for x
    x = 213,065,758,575.09/531,957.98
  6. Step 6: Final answer
    x = 400,531.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.