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Finding the Fourth Proportional to 664,085.01, 916,433.03 and 377,605.08

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Solution

The fourth proportional to 664,085.01, 916,433.03 and 377,605.08 is: 521,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,085.01 : 916,433.03 = 377,605.08 : x
  2. Step 2: Convert to fraction form
    664,085.01/916,433.03 = 377,605.08/x
  3. Step 3: Cross multiply
    664,085.01x = 916,433.03 × 377,605.08
  4. Step 4: Simplify right side
    664,085.01x = 346,049,768,551.81
  5. Step 5: Solve for x
    x = 346,049,768,551.81/664,085.01
  6. Step 6: Final answer
    x = 521,092.57

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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.