Home / 757,821.38-1,045,793.59-418,289.72

Finding the Fourth Proportional to 757,821.38, 1,045,793.59 and 418,289.72

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Solution

The fourth proportional to 757,821.38, 1,045,793.59 and 418,289.72 is: 577,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,821.38 : 1,045,793.59 = 418,289.72 : x
  2. Step 2: Convert to fraction form
    757,821.38/1,045,793.59 = 418,289.72/x
  3. Step 3: Cross multiply
    757,821.38x = 1,045,793.59 × 418,289.72
  4. Step 4: Simplify right side
    757,821.38x = 437,444,702,709.93
  5. Step 5: Solve for x
    x = 437,444,702,709.93/757,821.38
  6. Step 6: Final answer
    x = 577,239.86

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Double scale
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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.