Home / 756,777.60-1,135,166.40-357,429.12

Finding the Fourth Proportional to 756,777.60, 1,135,166.40 and 357,429.12

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Solution

The fourth proportional to 756,777.60, 1,135,166.40 and 357,429.12 is: 536,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,777.60 : 1,135,166.40 = 357,429.12 : x
  2. Step 2: Convert to fraction form
    756,777.60/1,135,166.40 = 357,429.12/x
  3. Step 3: Cross multiply
    756,777.60x = 1,135,166.40 × 357,429.12
  4. Step 4: Simplify right side
    756,777.60x = 405,741,527,405.57
  5. Step 5: Solve for x
    x = 405,741,527,405.57/756,777.60
  6. Step 6: Final answer
    x = 536,143.68

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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.