Home / 830,087.70-1,245,131.55-680,496.90

Finding the Fourth Proportional to 830,087.70, 1,245,131.55 and 680,496.90

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Solution

The fourth proportional to 830,087.70, 1,245,131.55 and 680,496.90 is: 1,020,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,087.70 : 1,245,131.55 = 680,496.90 : x
  2. Step 2: Convert to fraction form
    830,087.70/1,245,131.55 = 680,496.90/x
  3. Step 3: Cross multiply
    830,087.70x = 1,245,131.55 × 680,496.90
  4. Step 4: Simplify right side
    830,087.70x = 847,308,159,867.20
  5. Step 5: Solve for x
    x = 847,308,159,867.20/830,087.70
  6. Step 6: Final answer
    x = 1,020,745.35

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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.