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Finding the Fourth Proportional to 649,388.92, 895,576.52 and 407,694.02

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Solution

The fourth proportional to 649,388.92, 895,576.52 and 407,694.02 is: 562,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,388.92 : 895,576.52 = 407,694.02 : x
  2. Step 2: Convert to fraction form
    649,388.92/895,576.52 = 407,694.02/x
  3. Step 3: Cross multiply
    649,388.92x = 895,576.52 × 407,694.02
  4. Step 4: Simplify right side
    649,388.92x = 365,121,191,656.41
  5. Step 5: Solve for x
    x = 365,121,191,656.41/649,388.92
  6. Step 6: Final answer
    x = 562,253.50

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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.