Home / 1,280,879.32-1,921,983.58-570,742.19

Finding the Fourth Proportional to 1,280,879.32, 1,921,983.58 and 570,742.19

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Solution

The fourth proportional to 1,280,879.32, 1,921,983.58 and 570,742.19 is: 856,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,879.32 : 1,921,983.58 = 570,742.19 : x
  2. Step 2: Convert to fraction form
    1,280,879.32/1,921,983.58 = 570,742.19/x
  3. Step 3: Cross multiply
    1,280,879.32x = 1,921,983.58 × 570,742.19
  4. Step 4: Simplify right side
    1,280,879.32x = 1,096,957,117,593.24
  5. Step 5: Solve for x
    x = 1,096,957,117,593.24/1,280,879.32
  6. Step 6: Final answer
    x = 856,409.42

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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.