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Finding the Fourth Proportional to 611,875.85, 844,339.16 and 353,769.35

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Solution

The fourth proportional to 611,875.85, 844,339.16 and 353,769.35 is: 488,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,875.85 : 844,339.16 = 353,769.35 : x
  2. Step 2: Convert to fraction form
    611,875.85/844,339.16 = 353,769.35/x
  3. Step 3: Cross multiply
    611,875.85x = 844,339.16 × 353,769.35
  4. Step 4: Simplify right side
    611,875.85x = 298,701,318,016.45
  5. Step 5: Solve for x
    x = 298,701,318,016.45/611,875.85
  6. Step 6: Final answer
    x = 488,173.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.