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Finding the Fourth Proportional to 458,638.89, 632,900.25 and 254,702.76

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Solution

The fourth proportional to 458,638.89, 632,900.25 and 254,702.76 is: 351,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,638.89 : 632,900.25 = 254,702.76 : x
  2. Step 2: Convert to fraction form
    458,638.89/632,900.25 = 254,702.76/x
  3. Step 3: Cross multiply
    458,638.89x = 632,900.25 × 254,702.76
  4. Step 4: Simplify right side
    458,638.89x = 161,201,440,479.69
  5. Step 5: Solve for x
    x = 161,201,440,479.69/458,638.89
  6. Step 6: Final answer
    x = 351,477.91

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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.