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Finding the Fourth Proportional to 629,674.32, 868,264.50 and 425,370.69

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Solution

The fourth proportional to 629,674.32, 868,264.50 and 425,370.69 is: 586,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,674.32 : 868,264.50 = 425,370.69 : x
  2. Step 2: Convert to fraction form
    629,674.32/868,264.50 = 425,370.69/x
  3. Step 3: Cross multiply
    629,674.32x = 868,264.50 × 425,370.69
  4. Step 4: Simplify right side
    629,674.32x = 369,334,269,467.51
  5. Step 5: Solve for x
    x = 369,334,269,467.51/629,674.32
  6. Step 6: Final answer
    x = 586,548.09

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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.