Home / 859,821.45-1,186,540.18-472,628.49

Finding the Fourth Proportional to 859,821.45, 1,186,540.18 and 472,628.49

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Solution

The fourth proportional to 859,821.45, 1,186,540.18 and 472,628.49 is: 652,219.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,821.45 : 1,186,540.18 = 472,628.49 : x
  2. Step 2: Convert to fraction form
    859,821.45/1,186,540.18 = 472,628.49/x
  3. Step 3: Cross multiply
    859,821.45x = 1,186,540.18 × 472,628.49
  4. Step 4: Simplify right side
    859,821.45x = 560,792,687,966.63
  5. Step 5: Solve for x
    x = 560,792,687,966.63/859,821.45
  6. Step 6: Final answer
    x = 652,219.94

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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.