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Finding the Fourth Proportional to 491,810.40, 737,715.60 and 323,848.80

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Solution

The fourth proportional to 491,810.40, 737,715.60 and 323,848.80 is: 485,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,810.40 : 737,715.60 = 323,848.80 : x
  2. Step 2: Convert to fraction form
    491,810.40/737,715.60 = 323,848.80/x
  3. Step 3: Cross multiply
    491,810.40x = 737,715.60 × 323,848.80
  4. Step 4: Simplify right side
    491,810.40x = 238,908,311,801.28
  5. Step 5: Solve for x
    x = 238,908,311,801.28/491,810.40
  6. Step 6: Final answer
    x = 485,773.20

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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.