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Finding the Fourth Proportional to 614,917, 848,585.48 and 346,645

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Solution

The fourth proportional to 614,917, 848,585.48 and 346,645 is: 478,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,917 : 848,585.48 = 346,645 : x
  2. Step 2: Convert to fraction form
    614,917/848,585.48 = 346,645/x
  3. Step 3: Cross multiply
    614,917x = 848,585.48 × 346,645
  4. Step 4: Simplify right side
    614,917x = 294,157,913,714.60
  5. Step 5: Solve for x
    x = 294,157,913,714.60/614,917
  6. Step 6: Final answer
    x = 478,370.11

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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.