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Finding the Fourth Proportional to 675,137.28, 930,842.64 and 432,992.64

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Solution

The fourth proportional to 675,137.28, 930,842.64 and 432,992.64 is: 596,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,137.28 : 930,842.64 = 432,992.64 : x
  2. Step 2: Convert to fraction form
    675,137.28/930,842.64 = 432,992.64/x
  3. Step 3: Cross multiply
    675,137.28x = 930,842.64 × 432,992.64
  4. Step 4: Simplify right side
    675,137.28x = 403,048,012,118.17
  5. Step 5: Solve for x
    x = 403,048,012,118.17/675,137.28
  6. Step 6: Final answer
    x = 596,986.75

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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.