Home / 1,038,687.30-1,557,090.54-407,431.62

Finding the Fourth Proportional to 1,038,687.30, 1,557,090.54 and 407,431.62

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Solution

The fourth proportional to 1,038,687.30, 1,557,090.54 and 407,431.62 is: 610,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,687.30 : 1,557,090.54 = 407,431.62 : x
  2. Step 2: Convert to fraction form
    1,038,687.30/1,557,090.54 = 407,431.62/x
  3. Step 3: Cross multiply
    1,038,687.30x = 1,557,090.54 × 407,431.62
  4. Step 4: Simplify right side
    1,038,687.30x = 634,407,921,198.88
  5. Step 5: Solve for x
    x = 634,407,921,198.88/1,038,687.30
  6. Step 6: Final answer
    x = 610,778.55

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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.