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Finding the Fourth Proportional to 649,390.35, 895,578.44 and 407,695.44

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Solution

The fourth proportional to 649,390.35, 895,578.44 and 407,695.44 is: 562,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,390.35 : 895,578.44 = 407,695.44 : x
  2. Step 2: Convert to fraction form
    649,390.35/895,578.44 = 407,695.44/x
  3. Step 3: Cross multiply
    649,390.35x = 895,578.44 × 407,695.44
  4. Step 4: Simplify right side
    649,390.35x = 365,123,244,111.84
  5. Step 5: Solve for x
    x = 365,123,244,111.84/649,390.35
  6. Step 6: Final answer
    x = 562,255.42

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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.