Home / 680,918.40-1,021,377.60-326,624.40

Finding the Fourth Proportional to 680,918.40, 1,021,377.60 and 326,624.40

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Solution

The fourth proportional to 680,918.40, 1,021,377.60 and 326,624.40 is: 489,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,918.40 : 1,021,377.60 = 326,624.40 : x
  2. Step 2: Convert to fraction form
    680,918.40/1,021,377.60 = 326,624.40/x
  3. Step 3: Cross multiply
    680,918.40x = 1,021,377.60 × 326,624.40
  4. Step 4: Simplify right side
    680,918.40x = 333,606,845,773.44
  5. Step 5: Solve for x
    x = 333,606,845,773.44/680,918.40
  6. Step 6: Final answer
    x = 489,936.60

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Similar ratio
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1.5x scale

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.