Home / 753,729.84-1,039,680.72-495,636.48

Finding the Fourth Proportional to 753,729.84, 1,039,680.72 and 495,636.48

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Solution

The fourth proportional to 753,729.84, 1,039,680.72 and 495,636.48 is: 683,671.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,729.84 : 1,039,680.72 = 495,636.48 : x
  2. Step 2: Convert to fraction form
    753,729.84/1,039,680.72 = 495,636.48/x
  3. Step 3: Cross multiply
    753,729.84x = 1,039,680.72 × 495,636.48
  4. Step 4: Simplify right side
    753,729.84x = 515,303,692,384.67
  5. Step 5: Solve for x
    x = 515,303,692,384.67/753,729.84
  6. Step 6: Final answer
    x = 683,671.61

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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.