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Finding the Fourth Proportional to 531,783.03, 733,870.56 and 290,074.23

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Solution

The fourth proportional to 531,783.03, 733,870.56 and 290,074.23 is: 400,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,783.03 : 733,870.56 = 290,074.23 : x
  2. Step 2: Convert to fraction form
    531,783.03/733,870.56 = 290,074.23/x
  3. Step 3: Cross multiply
    531,783.03x = 733,870.56 × 290,074.23
  4. Step 4: Simplify right side
    531,783.03x = 212,876,937,611.67
  5. Step 5: Solve for x
    x = 212,876,937,611.67/531,783.03
  6. Step 6: Final answer
    x = 400,307.88

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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.