Home / 786,333.15-1,177,770.87-649,850.40

Finding the Fourth Proportional to 786,333.15, 1,177,770.87 and 649,850.40

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Solution

The fourth proportional to 786,333.15, 1,177,770.87 and 649,850.40 is: 973,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,333.15 : 1,177,770.87 = 649,850.40 : x
  2. Step 2: Convert to fraction form
    786,333.15/1,177,770.87 = 649,850.40/x
  3. Step 3: Cross multiply
    786,333.15x = 1,177,770.87 × 649,850.40
  4. Step 4: Simplify right side
    786,333.15x = 765,374,870,977.85
  5. Step 5: Solve for x
    x = 765,374,870,977.85/786,333.15
  6. Step 6: Final answer
    x = 973,346.82

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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.