Home / 1,221,779.75-1,680,077.16-1,060,354.54

Finding the Fourth Proportional to 1,221,779.75, 1,680,077.16 and 1,060,354.54

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Solution

The fourth proportional to 1,221,779.75, 1,680,077.16 and 1,060,354.54 is: 1,458,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,779.75 : 1,680,077.16 = 1,060,354.54 : x
  2. Step 2: Convert to fraction form
    1,221,779.75/1,680,077.16 = 1,060,354.54/x
  3. Step 3: Cross multiply
    1,221,779.75x = 1,680,077.16 × 1,060,354.54
  4. Step 4: Simplify right side
    1,221,779.75x = 1,781,477,446,256.40
  5. Step 5: Solve for x
    x = 1,781,477,446,256.40/1,221,779.75
  6. Step 6: Final answer
    x = 1,458,100.33

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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.