Home / 695,720-1,043,565.12-190,280.96

Finding the Fourth Proportional to 695,720, 1,043,565.12 and 190,280.96

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Solution

The fourth proportional to 695,720, 1,043,565.12 and 190,280.96 is: 285,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,720 : 1,043,565.12 = 190,280.96 : x
  2. Step 2: Convert to fraction form
    695,720/1,043,565.12 = 190,280.96/x
  3. Step 3: Cross multiply
    695,720x = 1,043,565.12 × 190,280.96
  4. Step 4: Simplify right side
    695,720x = 198,570,572,856.12
  5. Step 5: Solve for x
    x = 198,570,572,856.12/695,720
  6. Step 6: Final answer
    x = 285,417.37

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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.