Home / 757,820.30-1,045,791.32-418,287.74

Finding the Fourth Proportional to 757,820.30, 1,045,791.32 and 418,287.74

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Solution

The fourth proportional to 757,820.30, 1,045,791.32 and 418,287.74 is: 577,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,820.30 : 1,045,791.32 = 418,287.74 : x
  2. Step 2: Convert to fraction form
    757,820.30/1,045,791.32 = 418,287.74/x
  3. Step 3: Cross multiply
    757,820.30x = 1,045,791.32 × 418,287.74
  4. Step 4: Simplify right side
    757,820.30x = 437,441,680,434.02
  5. Step 5: Solve for x
    x = 437,441,680,434.02/757,820.30
  6. Step 6: Final answer
    x = 577,236.69

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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.