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Finding the Fourth Proportional to 476,451.50, 657,315.54 and 272,392.79

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Solution

The fourth proportional to 476,451.50, 657,315.54 and 272,392.79 is: 375,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,451.50 : 657,315.54 = 272,392.79 : x
  2. Step 2: Convert to fraction form
    476,451.50/657,315.54 = 272,392.79/x
  3. Step 3: Cross multiply
    476,451.50x = 657,315.54 × 272,392.79
  4. Step 4: Simplify right side
    476,451.50x = 179,048,010,564.38
  5. Step 5: Solve for x
    x = 179,048,010,564.38/476,451.50
  6. Step 6: Final answer
    x = 375,794.83

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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.