Home / 863,770.38-1,294,437.66-407,875.18

Finding the Fourth Proportional to 863,770.38, 1,294,437.66 and 407,875.18

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Solution

The fourth proportional to 863,770.38, 1,294,437.66 and 407,875.18 is: 611,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,770.38 : 1,294,437.66 = 407,875.18 : x
  2. Step 2: Convert to fraction form
    863,770.38/1,294,437.66 = 407,875.18/x
  3. Step 3: Cross multiply
    863,770.38x = 1,294,437.66 × 407,875.18
  4. Step 4: Simplify right side
    863,770.38x = 527,968,993,571.28
  5. Step 5: Solve for x
    x = 527,968,993,571.28/863,770.38
  6. Step 6: Final answer
    x = 611,237.67

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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.