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Finding the Fourth Proportional to 488,854.60, 732,245.10 and 405,910.60

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Solution

The fourth proportional to 488,854.60, 732,245.10 and 405,910.60 is: 608,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,854.60 : 732,245.10 = 405,910.60 : x
  2. Step 2: Convert to fraction form
    488,854.60/732,245.10 = 405,910.60/x
  3. Step 3: Cross multiply
    488,854.60x = 732,245.10 × 405,910.60
  4. Step 4: Simplify right side
    488,854.60x = 297,226,047,888.06
  5. Step 5: Solve for x
    x = 297,226,047,888.06/488,854.60
  6. Step 6: Final answer
    x = 608,005.01

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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.