Home / 629,619.82-868,878.29-357,702.64

Finding the Fourth Proportional to 629,619.82, 868,878.29 and 357,702.64

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Solution

The fourth proportional to 629,619.82, 868,878.29 and 357,702.64 is: 493,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,619.82 : 868,878.29 = 357,702.64 : x
  2. Step 2: Convert to fraction form
    629,619.82/868,878.29 = 357,702.64/x
  3. Step 3: Cross multiply
    629,619.82x = 868,878.29 × 357,702.64
  4. Step 4: Simplify right side
    629,619.82x = 310,800,058,171.69
  5. Step 5: Solve for x
    x = 310,800,058,171.69/629,619.82
  6. Step 6: Final answer
    x = 493,631.31

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1.5x scale

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.