Home / 830,471.40-1,245,707.10-680,880.60

Finding the Fourth Proportional to 830,471.40, 1,245,707.10 and 680,880.60

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Solution

The fourth proportional to 830,471.40, 1,245,707.10 and 680,880.60 is: 1,021,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,471.40 : 1,245,707.10 = 680,880.60 : x
  2. Step 2: Convert to fraction form
    830,471.40/1,245,707.10 = 680,880.60/x
  3. Step 3: Cross multiply
    830,471.40x = 1,245,707.10 × 680,880.60
  4. Step 4: Simplify right side
    830,471.40x = 848,177,797,672.26
  5. Step 5: Solve for x
    x = 848,177,797,672.26/830,471.40
  6. Step 6: Final answer
    x = 1,021,320.90

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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.