Home / 478,305.45-660,065.99-263,446.29

Finding the Fourth Proportional to 478,305.45, 660,065.99 and 263,446.29

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Solution

The fourth proportional to 478,305.45, 660,065.99 and 263,446.29 is: 363,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,305.45 : 660,065.99 = 263,446.29 : x
  2. Step 2: Convert to fraction form
    478,305.45/660,065.99 = 263,446.29/x
  3. Step 3: Cross multiply
    478,305.45x = 660,065.99 × 263,446.29
  4. Step 4: Simplify right side
    478,305.45x = 173,891,934,903.45
  5. Step 5: Solve for x
    x = 173,891,934,903.45/478,305.45
  6. Step 6: Final answer
    x = 363,558.34

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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.