Home / 839,960.68-1,159,116.87-477,378.22

Finding the Fourth Proportional to 839,960.68, 1,159,116.87 and 477,378.22

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Solution

The fourth proportional to 839,960.68, 1,159,116.87 and 477,378.22 is: 658,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,960.68 : 1,159,116.87 = 477,378.22 : x
  2. Step 2: Convert to fraction form
    839,960.68/1,159,116.87 = 477,378.22/x
  3. Step 3: Cross multiply
    839,960.68x = 1,159,116.87 × 477,378.22
  4. Step 4: Simplify right side
    839,960.68x = 553,337,148,172.57
  5. Step 5: Solve for x
    x = 553,337,148,172.57/839,960.68
  6. Step 6: Final answer
    x = 658,765.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.