Home / 680,910.30-1,021,365.45-607,427.10

Finding the Fourth Proportional to 680,910.30, 1,021,365.45 and 607,427.10

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Solution

The fourth proportional to 680,910.30, 1,021,365.45 and 607,427.10 is: 911,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,910.30 : 1,021,365.45 = 607,427.10 : x
  2. Step 2: Convert to fraction form
    680,910.30/1,021,365.45 = 607,427.10/x
  3. Step 3: Cross multiply
    680,910.30x = 1,021,365.45 × 607,427.10
  4. Step 4: Simplify right side
    680,910.30x = 620,405,053,333.70
  5. Step 5: Solve for x
    x = 620,405,053,333.70/680,910.30
  6. Step 6: Final answer
    x = 911,140.65

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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.