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Finding the Fourth Proportional to 445,353.85, 668,030.78 and 401,030.65

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Solution

The fourth proportional to 445,353.85, 668,030.78 and 401,030.65 is: 601,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,353.85 : 668,030.78 = 401,030.65 : x
  2. Step 2: Convert to fraction form
    445,353.85/668,030.78 = 401,030.65/x
  3. Step 3: Cross multiply
    445,353.85x = 668,030.78 × 401,030.65
  4. Step 4: Simplify right side
    445,353.85x = 267,900,815,918.25
  5. Step 5: Solve for x
    x = 267,900,815,918.25/445,353.85
  6. Step 6: Final answer
    x = 601,545.98

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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.