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Finding the Fourth Proportional to 674,203.21, 930,403.60 and 368,283.83

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Solution

The fourth proportional to 674,203.21, 930,403.60 and 368,283.83 is: 508,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,203.21 : 930,403.60 = 368,283.83 : x
  2. Step 2: Convert to fraction form
    674,203.21/930,403.60 = 368,283.83/x
  3. Step 3: Cross multiply
    674,203.21x = 930,403.60 × 368,283.83
  4. Step 4: Simplify right side
    674,203.21x = 342,652,595,681.06
  5. Step 5: Solve for x
    x = 342,652,595,681.06/674,203.21
  6. Step 6: Final answer
    x = 508,233.41

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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.