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Finding the Fourth Proportional to 618,665.60, 853,757.37 and 346,733.42

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Solution

The fourth proportional to 618,665.60, 853,757.37 and 346,733.42 is: 478,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,665.60 : 853,757.37 = 346,733.42 : x
  2. Step 2: Convert to fraction form
    618,665.60/853,757.37 = 346,733.42/x
  3. Step 3: Cross multiply
    618,665.60x = 853,757.37 × 346,733.42
  4. Step 4: Simplify right side
    618,665.60x = 296,026,208,481.52
  5. Step 5: Solve for x
    x = 296,026,208,481.52/618,665.60
  6. Step 6: Final answer
    x = 478,491.47

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1.5x scale

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.