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Finding the Fourth Proportional to 508,725.45, 700,279.29 and 439,783.11

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Solution

The fourth proportional to 508,725.45, 700,279.29 and 439,783.11 is: 605,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,725.45 : 700,279.29 = 439,783.11 : x
  2. Step 2: Convert to fraction form
    508,725.45/700,279.29 = 439,783.11/x
  3. Step 3: Cross multiply
    508,725.45x = 700,279.29 × 439,783.11
  4. Step 4: Simplify right side
    508,725.45x = 307,971,004,024.79
  5. Step 5: Solve for x
    x = 307,971,004,024.79/508,725.45
  6. Step 6: Final answer
    x = 605,377.62

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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.