Home / 380,625.48-570,947.58-127,909.62

Finding the Fourth Proportional to 380,625.48, 570,947.58 and 127,909.62

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Solution

The fourth proportional to 380,625.48, 570,947.58 and 127,909.62 is: 191,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,625.48 : 570,947.58 = 127,909.62 : x
  2. Step 2: Convert to fraction form
    380,625.48/570,947.58 = 127,909.62/x
  3. Step 3: Cross multiply
    380,625.48x = 570,947.58 × 127,909.62
  4. Step 4: Simplify right side
    380,625.48x = 73,029,687,997.72
  5. Step 5: Solve for x
    x = 73,029,687,997.72/380,625.48
  6. Step 6: Final answer
    x = 191,867.58

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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.