Home / 821,091.30-1,230,600.15-727,779.30

Finding the Fourth Proportional to 821,091.30, 1,230,600.15 and 727,779.30

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Solution

The fourth proportional to 821,091.30, 1,230,600.15 and 727,779.30 is: 1,090,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,091.30 : 1,230,600.15 = 727,779.30 : x
  2. Step 2: Convert to fraction form
    821,091.30/1,230,600.15 = 727,779.30/x
  3. Step 3: Cross multiply
    821,091.30x = 1,230,600.15 × 727,779.30
  4. Step 4: Simplify right side
    821,091.30x = 895,605,315,746.90
  5. Step 5: Solve for x
    x = 895,605,315,746.90/821,091.30
  6. Step 6: Final answer
    x = 1,090,749.98

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1.5x scale

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.