Home / 1,039,628.90-1,559,564.85-329,728.70

Finding the Fourth Proportional to 1,039,628.90, 1,559,564.85 and 329,728.70

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Solution

The fourth proportional to 1,039,628.90, 1,559,564.85 and 329,728.70 is: 494,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,628.90 : 1,559,564.85 = 329,728.70 : x
  2. Step 2: Convert to fraction form
    1,039,628.90/1,559,564.85 = 329,728.70/x
  3. Step 3: Cross multiply
    1,039,628.90x = 1,559,564.85 × 329,728.70
  4. Step 4: Simplify right side
    1,039,628.90x = 514,233,290,556.20
  5. Step 5: Solve for x
    x = 514,233,290,556.20/1,039,628.90
  6. Step 6: Final answer
    x = 494,631.58

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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.