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Finding the Fourth Proportional to 570,926.44, 787,841.54 and 312,803.03

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Solution

The fourth proportional to 570,926.44, 787,841.54 and 312,803.03 is: 431,647.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,926.44 : 787,841.54 = 312,803.03 : x
  2. Step 2: Convert to fraction form
    570,926.44/787,841.54 = 312,803.03/x
  3. Step 3: Cross multiply
    570,926.44x = 787,841.54 × 312,803.03
  4. Step 4: Simplify right side
    570,926.44x = 246,439,222,450.47
  5. Step 5: Solve for x
    x = 246,439,222,450.47/570,926.44
  6. Step 6: Final answer
    x = 431,647.94

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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.