Home / 640,204.83-880,932.92-620,725.95

Finding the Fourth Proportional to 640,204.83, 880,932.92 and 620,725.95

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Solution

The fourth proportional to 640,204.83, 880,932.92 and 620,725.95 is: 854,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,204.83 : 880,932.92 = 620,725.95 : x
  2. Step 2: Convert to fraction form
    640,204.83/880,932.92 = 620,725.95/x
  3. Step 3: Cross multiply
    640,204.83x = 880,932.92 × 620,725.95
  4. Step 4: Simplify right side
    640,204.83x = 546,817,920,549.64
  5. Step 5: Solve for x
    x = 546,817,920,549.64/640,204.83
  6. Step 6: Final answer
    x = 854,129.64

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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.