Home / 680,842.49-1,021,410.54-339,472.04

Finding the Fourth Proportional to 680,842.49, 1,021,410.54 and 339,472.04

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Solution

The fourth proportional to 680,842.49, 1,021,410.54 and 339,472.04 is: 509,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,842.49 : 1,021,410.54 = 339,472.04 : x
  2. Step 2: Convert to fraction form
    680,842.49/1,021,410.54 = 339,472.04/x
  3. Step 3: Cross multiply
    680,842.49x = 1,021,410.54 × 339,472.04
  4. Step 4: Simplify right side
    680,842.49x = 346,740,314,584.25
  5. Step 5: Solve for x
    x = 346,740,314,584.25/680,842.49
  6. Step 6: Final answer
    x = 509,281.25

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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.