Home / 685,860.31-1,029,428.81-349,153.04

Finding the Fourth Proportional to 685,860.31, 1,029,428.81 and 349,153.04

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Solution

The fourth proportional to 685,860.31, 1,029,428.81 and 349,153.04 is: 524,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,860.31 : 1,029,428.81 = 349,153.04 : x
  2. Step 2: Convert to fraction form
    685,860.31/1,029,428.81 = 349,153.04/x
  3. Step 3: Cross multiply
    685,860.31x = 1,029,428.81 × 349,153.04
  4. Step 4: Simplify right side
    685,860.31x = 359,428,200,612.21
  5. Step 5: Solve for x
    x = 359,428,200,612.21/685,860.31
  6. Step 6: Final answer
    x = 524,054.53

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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.