Home / 478,621.75-660,514.58-260,848.57

Finding the Fourth Proportional to 478,621.75, 660,514.58 and 260,848.57

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Solution

The fourth proportional to 478,621.75, 660,514.58 and 260,848.57 is: 359,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,621.75 : 660,514.58 = 260,848.57 : x
  2. Step 2: Convert to fraction form
    478,621.75/660,514.58 = 260,848.57/x
  3. Step 3: Cross multiply
    478,621.75x = 660,514.58 × 260,848.57
  4. Step 4: Simplify right side
    478,621.75x = 172,294,285,448.21
  5. Step 5: Solve for x
    x = 172,294,285,448.21/478,621.75
  6. Step 6: Final answer
    x = 359,980.06

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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.