Home / 486,332.20-727,748.70-328,868.20

Finding the Fourth Proportional to 486,332.20, 727,748.70 and 328,868.20

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Solution

The fourth proportional to 486,332.20, 727,748.70 and 328,868.20 is: 492,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,332.20 : 727,748.70 = 328,868.20 : x
  2. Step 2: Convert to fraction form
    486,332.20/727,748.70 = 328,868.20/x
  3. Step 3: Cross multiply
    486,332.20x = 727,748.70 × 328,868.20
  4. Step 4: Simplify right side
    486,332.20x = 239,333,405,021.34
  5. Step 5: Solve for x
    x = 239,333,405,021.34/486,332.20
  6. Step 6: Final answer
    x = 492,119.18

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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.