Home / 1,038,665.30-1,557,057.54-407,409.62

Finding the Fourth Proportional to 1,038,665.30, 1,557,057.54 and 407,409.62

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Solution

The fourth proportional to 1,038,665.30, 1,557,057.54 and 407,409.62 is: 610,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,665.30 : 1,557,057.54 = 407,409.62 : x
  2. Step 2: Convert to fraction form
    1,038,665.30/1,557,057.54 = 407,409.62/x
  3. Step 3: Cross multiply
    1,038,665.30x = 1,557,057.54 × 407,409.62
  4. Step 4: Simplify right side
    1,038,665.30x = 634,360,220,689.54
  5. Step 5: Solve for x
    x = 634,360,220,689.54/1,038,665.30
  6. Step 6: Final answer
    x = 610,745.56

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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.