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Finding the Fourth Proportional to 649,205.33, 895,949.71 and 358,810.65

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Solution

The fourth proportional to 649,205.33, 895,949.71 and 358,810.65 is: 495,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,205.33 : 895,949.71 = 358,810.65 : x
  2. Step 2: Convert to fraction form
    649,205.33/895,949.71 = 358,810.65/x
  3. Step 3: Cross multiply
    649,205.33x = 895,949.71 × 358,810.65
  4. Step 4: Simplify right side
    649,205.33x = 321,476,297,640.54
  5. Step 5: Solve for x
    x = 321,476,297,640.54/649,205.33
  6. Step 6: Final answer
    x = 495,184.32

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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.