Home / 757,821.25-1,045,793.42-418,289.59

Finding the Fourth Proportional to 757,821.25, 1,045,793.42 and 418,289.59

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Solution

The fourth proportional to 757,821.25, 1,045,793.42 and 418,289.59 is: 577,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,821.25 : 1,045,793.42 = 418,289.59 : x
  2. Step 2: Convert to fraction form
    757,821.25/1,045,793.42 = 418,289.59/x
  3. Step 3: Cross multiply
    757,821.25x = 1,045,793.42 × 418,289.59
  4. Step 4: Simplify right side
    757,821.25x = 437,444,500,876.50
  5. Step 5: Solve for x
    x = 437,444,500,876.50/757,821.25
  6. Step 6: Final answer
    x = 577,239.69

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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.