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Finding the Fourth Proportional to 403,362.90, 603,732.15 and 314,133.30

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Solution

The fourth proportional to 403,362.90, 603,732.15 and 314,133.30 is: 470,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,362.90 : 603,732.15 = 314,133.30 : x
  2. Step 2: Convert to fraction form
    403,362.90/603,732.15 = 314,133.30/x
  3. Step 3: Cross multiply
    403,362.90x = 603,732.15 × 314,133.30
  4. Step 4: Simplify right side
    403,362.90x = 189,652,372,595.60
  5. Step 5: Solve for x
    x = 189,652,372,595.60/403,362.90
  6. Step 6: Final answer
    x = 470,178.03

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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.