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Finding the Fourth Proportional to 669,437.84, 1,004,106 and 220,173.36

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Solution

The fourth proportional to 669,437.84, 1,004,106 and 220,173.36 is: 330,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,437.84 : 1,004,106 = 220,173.36 : x
  2. Step 2: Convert to fraction form
    669,437.84/1,004,106 = 220,173.36/x
  3. Step 3: Cross multiply
    669,437.84x = 1,004,106 × 220,173.36
  4. Step 4: Simplify right side
    669,437.84x = 221,077,391,816.16
  5. Step 5: Solve for x
    x = 221,077,391,816.16/669,437.84
  6. Step 6: Final answer
    x = 330,243.35

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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.