Home / 639,577.32-959,867.10-446,194.08

Finding the Fourth Proportional to 639,577.32, 959,867.10 and 446,194.08

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Solution

The fourth proportional to 639,577.32, 959,867.10 and 446,194.08 is: 669,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,577.32 : 959,867.10 = 446,194.08 : x
  2. Step 2: Convert to fraction form
    639,577.32/959,867.10 = 446,194.08/x
  3. Step 3: Cross multiply
    639,577.32x = 959,867.10 × 446,194.08
  4. Step 4: Simplify right side
    639,577.32x = 428,287,017,606.77
  5. Step 5: Solve for x
    x = 428,287,017,606.77/639,577.32
  6. Step 6: Final answer
    x = 669,640.72

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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.