Home / 669,989.73-1,004,419.54-290,624.96

Finding the Fourth Proportional to 669,989.73, 1,004,419.54 and 290,624.96

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Solution

The fourth proportional to 669,989.73, 1,004,419.54 and 290,624.96 is: 435,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,989.73 : 1,004,419.54 = 290,624.96 : x
  2. Step 2: Convert to fraction form
    669,989.73/1,004,419.54 = 290,624.96/x
  3. Step 3: Cross multiply
    669,989.73x = 1,004,419.54 × 290,624.96
  4. Step 4: Simplify right side
    669,989.73x = 291,909,391,510.05
  5. Step 5: Solve for x
    x = 291,909,391,510.05/669,989.73
  6. Step 6: Final answer
    x = 435,692.34

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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.