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Finding the Fourth Proportional to 589,329.80, 881,661.90 and 511,310.60

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Solution

The fourth proportional to 589,329.80, 881,661.90 and 511,310.60 is: 764,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,329.80 : 881,661.90 = 511,310.60 : x
  2. Step 2: Convert to fraction form
    589,329.80/881,661.90 = 511,310.60/x
  3. Step 3: Cross multiply
    589,329.80x = 881,661.90 × 511,310.60
  4. Step 4: Simplify right side
    589,329.80x = 450,803,075,086.14
  5. Step 5: Solve for x
    x = 450,803,075,086.14/589,329.80
  6. Step 6: Final answer
    x = 764,941.93

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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.