Home / 705,967.20-1,059,385.42-279,430.41

Finding the Fourth Proportional to 705,967.20, 1,059,385.42 and 279,430.41

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Solution

The fourth proportional to 705,967.20, 1,059,385.42 and 279,430.41 is: 419,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,967.20 : 1,059,385.42 = 279,430.41 : x
  2. Step 2: Convert to fraction form
    705,967.20/1,059,385.42 = 279,430.41/x
  3. Step 3: Cross multiply
    705,967.20x = 1,059,385.42 × 279,430.41
  4. Step 4: Simplify right side
    705,967.20x = 296,024,502,258.62
  5. Step 5: Solve for x
    x = 296,024,502,258.62/705,967.20
  6. Step 6: Final answer
    x = 419,317.64

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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.