Home / 390,829.01-538,915.74-254,610.35

Finding the Fourth Proportional to 390,829.01, 538,915.74 and 254,610.35

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Solution

The fourth proportional to 390,829.01, 538,915.74 and 254,610.35 is: 351,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,829.01 : 538,915.74 = 254,610.35 : x
  2. Step 2: Convert to fraction form
    390,829.01/538,915.74 = 254,610.35/x
  3. Step 3: Cross multiply
    390,829.01x = 538,915.74 × 254,610.35
  4. Step 4: Simplify right side
    390,829.01x = 137,213,526,529.20
  5. Step 5: Solve for x
    x = 137,213,526,529.20/390,829.01
  6. Step 6: Final answer
    x = 351,083.27

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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.