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Finding the Fourth Proportional to 688,540, 950,164.66 and 382,615.44

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Solution

The fourth proportional to 688,540, 950,164.66 and 382,615.44 is: 527,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,540 : 950,164.66 = 382,615.44 : x
  2. Step 2: Convert to fraction form
    688,540/950,164.66 = 382,615.44/x
  3. Step 3: Cross multiply
    688,540x = 950,164.66 × 382,615.44
  4. Step 4: Simplify right side
    688,540x = 363,547,669,458.35
  5. Step 5: Solve for x
    x = 363,547,669,458.35/688,540
  6. Step 6: Final answer
    x = 527,997.89

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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.