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Finding the Fourth Proportional to 674,090.48, 930,239.16 and 372,278

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Solution

The fourth proportional to 674,090.48, 930,239.16 and 372,278 is: 513,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,090.48 : 930,239.16 = 372,278 : x
  2. Step 2: Convert to fraction form
    674,090.48/930,239.16 = 372,278/x
  3. Step 3: Cross multiply
    674,090.48x = 930,239.16 × 372,278
  4. Step 4: Simplify right side
    674,090.48x = 346,307,574,006.48
  5. Step 5: Solve for x
    x = 346,307,574,006.48/674,090.48
  6. Step 6: Final answer
    x = 513,740.49

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