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Finding the Fourth Proportional to 546,863.76, 820,290.52 and 172,886.80

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Solution

The fourth proportional to 546,863.76, 820,290.52 and 172,886.80 is: 259,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,863.76 : 820,290.52 = 172,886.80 : x
  2. Step 2: Convert to fraction form
    546,863.76/820,290.52 = 172,886.80/x
  3. Step 3: Cross multiply
    546,863.76x = 820,290.52 × 172,886.80
  4. Step 4: Simplify right side
    546,863.76x = 141,817,403,073.14
  5. Step 5: Solve for x
    x = 141,817,403,073.14/546,863.76
  6. Step 6: Final answer
    x = 259,328.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.