Home / 757,818.79-1,045,789.25-418,286.23

Finding the Fourth Proportional to 757,818.79, 1,045,789.25 and 418,286.23

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Solution

The fourth proportional to 757,818.79, 1,045,789.25 and 418,286.23 is: 577,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,818.79 : 1,045,789.25 = 418,286.23 : x
  2. Step 2: Convert to fraction form
    757,818.79/1,045,789.25 = 418,286.23/x
  3. Step 3: Cross multiply
    757,818.79x = 1,045,789.25 × 418,286.23
  4. Step 4: Simplify right side
    757,818.79x = 437,439,238,051.12
  5. Step 5: Solve for x
    x = 437,439,238,051.12/757,818.79
  6. Step 6: Final answer
    x = 577,234.62

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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.