Home / 557,580.48-769,499.14-315,865.04

Finding the Fourth Proportional to 557,580.48, 769,499.14 and 315,865.04

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Solution

The fourth proportional to 557,580.48, 769,499.14 and 315,865.04 is: 435,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,580.48 : 769,499.14 = 315,865.04 : x
  2. Step 2: Convert to fraction form
    557,580.48/769,499.14 = 315,865.04/x
  3. Step 3: Cross multiply
    557,580.48x = 769,499.14 × 315,865.04
  4. Step 4: Simplify right side
    557,580.48x = 243,057,876,636.07
  5. Step 5: Solve for x
    x = 243,057,876,636.07/557,580.48
  6. Step 6: Final answer
    x = 435,915.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.