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Finding the Fourth Proportional to 489,693.32, 675,810.25 and 271,913.24

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Solution

The fourth proportional to 489,693.32, 675,810.25 and 271,913.24 is: 375,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,693.32 : 675,810.25 = 271,913.24 : x
  2. Step 2: Convert to fraction form
    489,693.32/675,810.25 = 271,913.24/x
  3. Step 3: Cross multiply
    489,693.32x = 675,810.25 × 271,913.24
  4. Step 4: Simplify right side
    489,693.32x = 183,761,750,643.88
  5. Step 5: Solve for x
    x = 183,761,750,643.88/489,693.32
  6. Step 6: Final answer
    x = 375,258.85

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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.