Home / 2,580,740.48-3,870,860.57-783,639.75

Finding the Fourth Proportional to 2,580,740.48, 3,870,860.57 and 783,639.75

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Solution

The fourth proportional to 2,580,740.48, 3,870,860.57 and 783,639.75 is: 1,175,383.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580,740.48 : 3,870,860.57 = 783,639.75 : x
  2. Step 2: Convert to fraction form
    2,580,740.48/3,870,860.57 = 783,639.75/x
  3. Step 3: Cross multiply
    2,580,740.48x = 3,870,860.57 × 783,639.75
  4. Step 4: Simplify right side
    2,580,740.48x = 3,033,360,209,359.66
  5. Step 5: Solve for x
    x = 3,033,360,209,359.66/2,580,740.48
  6. Step 6: Final answer
    x = 1,175,383.67

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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.