Home / 959,904.92-1,439,699.78-320,213.58

Finding the Fourth Proportional to 959,904.92, 1,439,699.78 and 320,213.58

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Solution

The fourth proportional to 959,904.92, 1,439,699.78 and 320,213.58 is: 480,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,904.92 : 1,439,699.78 = 320,213.58 : x
  2. Step 2: Convert to fraction form
    959,904.92/1,439,699.78 = 320,213.58/x
  3. Step 3: Cross multiply
    959,904.92x = 1,439,699.78 × 320,213.58
  4. Step 4: Simplify right side
    959,904.92x = 461,011,420,679.01
  5. Step 5: Solve for x
    x = 461,011,420,679.01/959,904.92
  6. Step 6: Final answer
    x = 480,267.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.