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Finding the Fourth Proportional to 458,603.55, 632,427.48 and 356,448.78

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Solution

The fourth proportional to 458,603.55, 632,427.48 and 356,448.78 is: 491,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,603.55 : 632,427.48 = 356,448.78 : x
  2. Step 2: Convert to fraction form
    458,603.55/632,427.48 = 356,448.78/x
  3. Step 3: Cross multiply
    458,603.55x = 632,427.48 × 356,448.78
  4. Step 4: Simplify right side
    458,603.55x = 225,428,003,684.47
  5. Step 5: Solve for x
    x = 225,428,003,684.47/458,603.55
  6. Step 6: Final answer
    x = 491,553.12

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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.