Home / 783,733.44-1,175,933.04-428,332.28

Finding the Fourth Proportional to 783,733.44, 1,175,933.04 and 428,332.28

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Solution

The fourth proportional to 783,733.44, 1,175,933.04 and 428,332.28 is: 642,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,733.44 : 1,175,933.04 = 428,332.28 : x
  2. Step 2: Convert to fraction form
    783,733.44/1,175,933.04 = 428,332.28/x
  3. Step 3: Cross multiply
    783,733.44x = 1,175,933.04 × 428,332.28
  4. Step 4: Simplify right side
    783,733.44x = 503,690,080,150.53
  5. Step 5: Solve for x
    x = 503,690,080,150.53/783,733.44
  6. Step 6: Final answer
    x = 642,680.35

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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.