Home / 380,657.20-570,795.81-124,456.40

Finding the Fourth Proportional to 380,657.20, 570,795.81 and 124,456.40

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Solution

The fourth proportional to 380,657.20, 570,795.81 and 124,456.40 is: 186,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,657.20 : 570,795.81 = 124,456.40 : x
  2. Step 2: Convert to fraction form
    380,657.20/570,795.81 = 124,456.40/x
  3. Step 3: Cross multiply
    380,657.20x = 570,795.81 × 124,456.40
  4. Step 4: Simplify right side
    380,657.20x = 71,039,188,326.99
  5. Step 5: Solve for x
    x = 71,039,188,326.99/380,657.20
  6. Step 6: Final answer
    x = 186,622.48

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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.