Home / 1,101,779.70-1,652,669.55-628,512.90

Finding the Fourth Proportional to 1,101,779.70, 1,652,669.55 and 628,512.90

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Solution

The fourth proportional to 1,101,779.70, 1,652,669.55 and 628,512.90 is: 942,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,779.70 : 1,652,669.55 = 628,512.90 : x
  2. Step 2: Convert to fraction form
    1,101,779.70/1,652,669.55 = 628,512.90/x
  3. Step 3: Cross multiply
    1,101,779.70x = 1,652,669.55 × 628,512.90
  4. Step 4: Simplify right side
    1,101,779.70x = 1,038,724,131,612.20
  5. Step 5: Solve for x
    x = 1,038,724,131,612.20/1,101,779.70
  6. Step 6: Final answer
    x = 942,769.35

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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.