Home / 783,494.18-1,175,573.47-428,093.02

Finding the Fourth Proportional to 783,494.18, 1,175,573.47 and 428,093.02

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Solution

The fourth proportional to 783,494.18, 1,175,573.47 and 428,093.02 is: 642,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,494.18 : 1,175,573.47 = 428,093.02 : x
  2. Step 2: Convert to fraction form
    783,494.18/1,175,573.47 = 428,093.02/x
  3. Step 3: Cross multiply
    783,494.18x = 1,175,573.47 × 428,093.02
  4. Step 4: Simplify right side
    783,494.18x = 503,254,797,004.18
  5. Step 5: Solve for x
    x = 503,254,797,004.18/783,494.18
  6. Step 6: Final answer
    x = 642,321.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.