Home / 757,421.40-1,134,601.20-472,236.60

Finding the Fourth Proportional to 757,421.40, 1,134,601.20 and 472,236.60

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Solution

The fourth proportional to 757,421.40, 1,134,601.20 and 472,236.60 is: 707,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,421.40 : 1,134,601.20 = 472,236.60 : x
  2. Step 2: Convert to fraction form
    757,421.40/1,134,601.20 = 472,236.60/x
  3. Step 3: Cross multiply
    757,421.40x = 1,134,601.20 × 472,236.60
  4. Step 4: Simplify right side
    757,421.40x = 535,800,213,043.92
  5. Step 5: Solve for x
    x = 535,800,213,043.92/757,421.40
  6. Step 6: Final answer
    x = 707,400.42

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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.