Home / 666,986.83-1,000,330.50-306,811.76

Finding the Fourth Proportional to 666,986.83, 1,000,330.50 and 306,811.76

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Solution

The fourth proportional to 666,986.83, 1,000,330.50 and 306,811.76 is: 460,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,986.83 : 1,000,330.50 = 306,811.76 : x
  2. Step 2: Convert to fraction form
    666,986.83/1,000,330.50 = 306,811.76/x
  3. Step 3: Cross multiply
    666,986.83x = 1,000,330.50 × 306,811.76
  4. Step 4: Simplify right side
    666,986.83x = 306,913,161,286.68
  5. Step 5: Solve for x
    x = 306,913,161,286.68/666,986.83
  6. Step 6: Final answer
    x = 460,148.76

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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.