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Finding the Fourth Proportional to 546,538.20, 814,374.20 and 486,915.72

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Solution

The fourth proportional to 546,538.20, 814,374.20 and 486,915.72 is: 725,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,538.20 : 814,374.20 = 486,915.72 : x
  2. Step 2: Convert to fraction form
    546,538.20/814,374.20 = 486,915.72/x
  3. Step 3: Cross multiply
    546,538.20x = 814,374.20 × 486,915.72
  4. Step 4: Simplify right side
    546,538.20x = 396,531,599,942.42
  5. Step 5: Solve for x
    x = 396,531,599,942.42/546,538.20
  6. Step 6: Final answer
    x = 725,533.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.