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Finding the Fourth Proportional to 508,924.96, 763,649.89 and 209,626.72

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Solution

The fourth proportional to 508,924.96, 763,649.89 and 209,626.72 is: 314,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,924.96 : 763,649.89 = 209,626.72 : x
  2. Step 2: Convert to fraction form
    508,924.96/763,649.89 = 209,626.72/x
  3. Step 3: Cross multiply
    508,924.96x = 763,649.89 × 209,626.72
  4. Step 4: Simplify right side
    508,924.96x = 160,081,421,669.06
  5. Step 5: Solve for x
    x = 160,081,421,669.06/508,924.96
  6. Step 6: Final answer
    x = 314,548.18

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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.