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Finding the Fourth Proportional to 461,519.55, 636,928.94 and 257,610.15

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Solution

The fourth proportional to 461,519.55, 636,928.94 and 257,610.15 is: 355,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,519.55 : 636,928.94 = 257,610.15 : x
  2. Step 2: Convert to fraction form
    461,519.55/636,928.94 = 257,610.15/x
  3. Step 3: Cross multiply
    461,519.55x = 636,928.94 × 257,610.15
  4. Step 4: Simplify right side
    461,519.55x = 164,079,358,484.69
  5. Step 5: Solve for x
    x = 164,079,358,484.69/461,519.55
  6. Step 6: Final answer
    x = 355,519.84

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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.