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Finding the Fourth Proportional to 465,175.71, 642,011.91 and 283,992.67

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Solution

The fourth proportional to 465,175.71, 642,011.91 and 283,992.67 is: 391,952.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,175.71 : 642,011.91 = 283,992.67 : x
  2. Step 2: Convert to fraction form
    465,175.71/642,011.91 = 283,992.67/x
  3. Step 3: Cross multiply
    465,175.71x = 642,011.91 × 283,992.67
  4. Step 4: Simplify right side
    465,175.71x = 182,326,676,492.70
  5. Step 5: Solve for x
    x = 182,326,676,492.70/465,175.71
  6. Step 6: Final answer
    x = 391,952.27

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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.