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Finding the Fourth Proportional to 628,572.03, 867,520.82 and 352,960.81

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Solution

The fourth proportional to 628,572.03, 867,520.82 and 352,960.81 is: 487,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,572.03 : 867,520.82 = 352,960.81 : x
  2. Step 2: Convert to fraction form
    628,572.03/867,520.82 = 352,960.81/x
  3. Step 3: Cross multiply
    628,572.03x = 867,520.82 × 352,960.81
  4. Step 4: Simplify right side
    628,572.03x = 306,200,851,319.06
  5. Step 5: Solve for x
    x = 306,200,851,319.06/628,572.03
  6. Step 6: Final answer
    x = 487,137.25

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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.