Home / 645,276.48-966,583.04-378,225.96

Finding the Fourth Proportional to 645,276.48, 966,583.04 and 378,225.96

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Solution

The fourth proportional to 645,276.48, 966,583.04 and 378,225.96 is: 566,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,276.48 : 966,583.04 = 378,225.96 : x
  2. Step 2: Convert to fraction form
    645,276.48/966,583.04 = 378,225.96/x
  3. Step 3: Cross multiply
    645,276.48x = 966,583.04 × 378,225.96
  4. Step 4: Simplify right side
    645,276.48x = 365,586,798,223.72
  5. Step 5: Solve for x
    x = 365,586,798,223.72/645,276.48
  6. Step 6: Final answer
    x = 566,558.38

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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.