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Finding the Fourth Proportional to 546,000.30, 819,000.45 and 488,919.60

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Solution

The fourth proportional to 546,000.30, 819,000.45 and 488,919.60 is: 733,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,000.30 : 819,000.45 = 488,919.60 : x
  2. Step 2: Convert to fraction form
    546,000.30/819,000.45 = 488,919.60/x
  3. Step 3: Cross multiply
    546,000.30x = 819,000.45 × 488,919.60
  4. Step 4: Simplify right side
    546,000.30x = 400,425,372,413.82
  5. Step 5: Solve for x
    x = 400,425,372,413.82/546,000.30
  6. Step 6: Final answer
    x = 733,379.40

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Similar ratio
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1.5x scale

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.