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Finding the Fourth Proportional to 688,322.43, 950,230.31 and 430,342.70

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Solution

The fourth proportional to 688,322.43, 950,230.31 and 430,342.70 is: 594,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,322.43 : 950,230.31 = 430,342.70 : x
  2. Step 2: Convert to fraction form
    688,322.43/950,230.31 = 430,342.70/x
  3. Step 3: Cross multiply
    688,322.43x = 950,230.31 × 430,342.70
  4. Step 4: Simplify right side
    688,322.43x = 408,924,670,324.37
  5. Step 5: Solve for x
    x = 408,924,670,324.37/688,322.43
  6. Step 6: Final answer
    x = 594,088.83

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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.