Home / 645,359.40-968,038.50-196,078.44

Finding the Fourth Proportional to 645,359.40, 968,038.50 and 196,078.44

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Solution

The fourth proportional to 645,359.40, 968,038.50 and 196,078.44 is: 294,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,359.40 : 968,038.50 = 196,078.44 : x
  2. Step 2: Convert to fraction form
    645,359.40/968,038.50 = 196,078.44/x
  3. Step 3: Cross multiply
    645,359.40x = 968,038.50 × 196,078.44
  4. Step 4: Simplify right side
    645,359.40x = 189,811,478,939.94
  5. Step 5: Solve for x
    x = 189,811,478,939.94/645,359.40
  6. Step 6: Final answer
    x = 294,117.48

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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.