Home / 1,258,810.72-1,889,862.48-747,409.46

Finding the Fourth Proportional to 1,258,810.72, 1,889,862.48 and 747,409.46

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Solution

The fourth proportional to 1,258,810.72, 1,889,862.48 and 747,409.46 is: 1,122,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,810.72 : 1,889,862.48 = 747,409.46 : x
  2. Step 2: Convert to fraction form
    1,258,810.72/1,889,862.48 = 747,409.46/x
  3. Step 3: Cross multiply
    1,258,810.72x = 1,889,862.48 × 747,409.46
  4. Step 4: Simplify right side
    1,258,810.72x = 1,412,501,086,201.75
  5. Step 5: Solve for x
    x = 1,412,501,086,201.75/1,258,810.72
  6. Step 6: Final answer
    x = 1,122,091.72

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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.