Home / 689,329.44-1,033,994.52-315,090

Finding the Fourth Proportional to 689,329.44, 1,033,994.52 and 315,090

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Solution

The fourth proportional to 689,329.44, 1,033,994.52 and 315,090 is: 472,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,329.44 : 1,033,994.52 = 315,090 : x
  2. Step 2: Convert to fraction form
    689,329.44/1,033,994.52 = 315,090/x
  3. Step 3: Cross multiply
    689,329.44x = 1,033,994.52 × 315,090
  4. Step 4: Simplify right side
    689,329.44x = 325,801,333,306.80
  5. Step 5: Solve for x
    x = 325,801,333,306.80/689,329.44
  6. Step 6: Final answer
    x = 472,635.16

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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.