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Finding the Fourth Proportional to 636,783.16, 878,747.34 and 350,298.04

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Solution

The fourth proportional to 636,783.16, 878,747.34 and 350,298.04 is: 483,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,783.16 : 878,747.34 = 350,298.04 : x
  2. Step 2: Convert to fraction form
    636,783.16/878,747.34 = 350,298.04/x
  3. Step 3: Cross multiply
    636,783.16x = 878,747.34 × 350,298.04
  4. Step 4: Simplify right side
    636,783.16x = 307,823,470,857.21
  5. Step 5: Solve for x
    x = 307,823,470,857.21/636,783.16
  6. Step 6: Final answer
    x = 483,403.91

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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.