Home / 955,709.96-1,318,855.47-520,108.79

Finding the Fourth Proportional to 955,709.96, 1,318,855.47 and 520,108.79

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Solution

The fourth proportional to 955,709.96, 1,318,855.47 and 520,108.79 is: 717,736.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,709.96 : 1,318,855.47 = 520,108.79 : x
  2. Step 2: Convert to fraction form
    955,709.96/1,318,855.47 = 520,108.79/x
  3. Step 3: Cross multiply
    955,709.96x = 1,318,855.47 × 520,108.79
  4. Step 4: Simplify right side
    955,709.96x = 685,948,322,686.58
  5. Step 5: Solve for x
    x = 685,948,322,686.58/955,709.96
  6. Step 6: Final answer
    x = 717,736.92

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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.