Home / 505,789.55-697,981.34-276,341.90

Finding the Fourth Proportional to 505,789.55, 697,981.34 and 276,341.90

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Solution

The fourth proportional to 505,789.55, 697,981.34 and 276,341.90 is: 381,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,789.55 : 697,981.34 = 276,341.90 : x
  2. Step 2: Convert to fraction form
    505,789.55/697,981.34 = 276,341.90/x
  3. Step 3: Cross multiply
    505,789.55x = 697,981.34 × 276,341.90
  4. Step 4: Simplify right side
    505,789.55x = 192,881,489,577.85
  5. Step 5: Solve for x
    x = 192,881,489,577.85/505,789.55
  6. Step 6: Final answer
    x = 381,347.32

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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.