Home / 695,155.31-959,235.03-389,189.15

Finding the Fourth Proportional to 695,155.31, 959,235.03 and 389,189.15

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Solution

The fourth proportional to 695,155.31, 959,235.03 and 389,189.15 is: 537,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,155.31 : 959,235.03 = 389,189.15 : x
  2. Step 2: Convert to fraction form
    695,155.31/959,235.03 = 389,189.15/x
  3. Step 3: Cross multiply
    695,155.31x = 959,235.03 × 389,189.15
  4. Step 4: Simplify right side
    695,155.31x = 373,323,861,179.75
  5. Step 5: Solve for x
    x = 373,323,861,179.75/695,155.31
  6. Step 6: Final answer
    x = 537,036.63

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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.