Home / 669,722.96-1,005,076.92-492,715.28

Finding the Fourth Proportional to 669,722.96, 1,005,076.92 and 492,715.28

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Solution

The fourth proportional to 669,722.96, 1,005,076.92 and 492,715.28 is: 739,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,722.96 : 1,005,076.92 = 492,715.28 : x
  2. Step 2: Convert to fraction form
    669,722.96/1,005,076.92 = 492,715.28/x
  3. Step 3: Cross multiply
    669,722.96x = 1,005,076.92 × 492,715.28
  4. Step 4: Simplify right side
    669,722.96x = 495,216,756,059.34
  5. Step 5: Solve for x
    x = 495,216,756,059.34/669,722.96
  6. Step 6: Final answer
    x = 739,435.24

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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.