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Finding the Fourth Proportional to 486,096.33, 670,712.76 and 279,324.77

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Solution

The fourth proportional to 486,096.33, 670,712.76 and 279,324.77 is: 385,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,096.33 : 670,712.76 = 279,324.77 : x
  2. Step 2: Convert to fraction form
    486,096.33/670,712.76 = 279,324.77/x
  3. Step 3: Cross multiply
    486,096.33x = 670,712.76 × 279,324.77
  4. Step 4: Simplify right side
    486,096.33x = 187,346,687,423.07
  5. Step 5: Solve for x
    x = 187,346,687,423.07/486,096.33
  6. Step 6: Final answer
    x = 385,410.62

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1.5x scale

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.