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Finding the Fourth Proportional to 489,430.10, 675,354.48 and 271,637.70

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Solution

The fourth proportional to 489,430.10, 675,354.48 and 271,637.70 is: 374,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,430.10 : 675,354.48 = 271,637.70 : x
  2. Step 2: Convert to fraction form
    489,430.10/675,354.48 = 271,637.70/x
  3. Step 3: Cross multiply
    489,430.10x = 675,354.48 × 271,637.70
  4. Step 4: Simplify right side
    489,430.10x = 183,451,740,171.49
  5. Step 5: Solve for x
    x = 183,451,740,171.49/489,430.10
  6. Step 6: Final answer
    x = 374,827.26

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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.