Home / 964,415.56-1,443,785.52-643,772.12

Finding the Fourth Proportional to 964,415.56, 1,443,785.52 and 643,772.12

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Solution

The fourth proportional to 964,415.56, 1,443,785.52 and 643,772.12 is: 963,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,415.56 : 1,443,785.52 = 643,772.12 : x
  2. Step 2: Convert to fraction form
    964,415.56/1,443,785.52 = 643,772.12/x
  3. Step 3: Cross multiply
    964,415.56x = 1,443,785.52 × 643,772.12
  4. Step 4: Simplify right side
    964,415.56x = 929,468,865,035.70
  5. Step 5: Solve for x
    x = 929,468,865,035.70/964,415.56
  6. Step 6: Final answer
    x = 963,763.86

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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.