Home / 866,719.40-1,299,560.70-446,815.40

Finding the Fourth Proportional to 866,719.40, 1,299,560.70 and 446,815.40

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Solution

The fourth proportional to 866,719.40, 1,299,560.70 and 446,815.40 is: 669,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,719.40 : 1,299,560.70 = 446,815.40 : x
  2. Step 2: Convert to fraction form
    866,719.40/1,299,560.70 = 446,815.40/x
  3. Step 3: Cross multiply
    866,719.40x = 1,299,560.70 × 446,815.40
  4. Step 4: Simplify right side
    866,719.40x = 580,663,733,994.78
  5. Step 5: Solve for x
    x = 580,663,733,994.78/866,719.40
  6. Step 6: Final answer
    x = 669,955.85

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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.