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Finding the Fourth Proportional to 674,279.89, 930,490.89 and 368,357.63

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Solution

The fourth proportional to 674,279.89, 930,490.89 and 368,357.63 is: 508,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,279.89 : 930,490.89 = 368,357.63 : x
  2. Step 2: Convert to fraction form
    674,279.89/930,490.89 = 368,357.63/x
  3. Step 3: Cross multiply
    674,279.89x = 930,490.89 × 368,357.63
  4. Step 4: Simplify right side
    674,279.89x = 342,753,415,015.21
  5. Step 5: Solve for x
    x = 342,753,415,015.21/674,279.89
  6. Step 6: Final answer
    x = 508,325.13

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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.