Home / 757,821.13-1,045,793.25-418,289.47

Finding the Fourth Proportional to 757,821.13, 1,045,793.25 and 418,289.47

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Solution

The fourth proportional to 757,821.13, 1,045,793.25 and 418,289.47 is: 577,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,821.13 : 1,045,793.25 = 418,289.47 : x
  2. Step 2: Convert to fraction form
    757,821.13/1,045,793.25 = 418,289.47/x
  3. Step 3: Cross multiply
    757,821.13x = 1,045,793.25 × 418,289.47
  4. Step 4: Simplify right side
    757,821.13x = 437,444,296,951.66
  5. Step 5: Solve for x
    x = 437,444,296,951.66/757,821.13
  6. Step 6: Final answer
    x = 577,239.51

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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.