Home / 478,828.76-660,788.16-263,976.54

Finding the Fourth Proportional to 478,828.76, 660,788.16 and 263,976.54

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Solution

The fourth proportional to 478,828.76, 660,788.16 and 263,976.54 is: 364,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,828.76 : 660,788.16 = 263,976.54 : x
  2. Step 2: Convert to fraction form
    478,828.76/660,788.16 = 263,976.54/x
  3. Step 3: Cross multiply
    478,828.76x = 660,788.16 × 263,976.54
  4. Step 4: Simplify right side
    478,828.76x = 174,432,572,149.77
  5. Step 5: Solve for x
    x = 174,432,572,149.77/478,828.76
  6. Step 6: Final answer
    x = 364,290.09

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1.5x scale

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.