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Finding the Fourth Proportional to 674,434.74, 930,709.13 and 368,504.49

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Solution

The fourth proportional to 674,434.74, 930,709.13 and 368,504.49 is: 508,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,434.74 : 930,709.13 = 368,504.49 : x
  2. Step 2: Convert to fraction form
    674,434.74/930,709.13 = 368,504.49/x
  3. Step 3: Cross multiply
    674,434.74x = 930,709.13 × 368,504.49
  4. Step 4: Simplify right side
    674,434.74x = 342,970,491,446.47
  5. Step 5: Solve for x
    x = 342,970,491,446.47/674,434.74
  6. Step 6: Final answer
    x = 508,530.29

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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.