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Finding the Fourth Proportional to 639,169.84, 882,024.72 and 367,046.20

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Solution

The fourth proportional to 639,169.84, 882,024.72 and 367,046.20 is: 506,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,169.84 : 882,024.72 = 367,046.20 : x
  2. Step 2: Convert to fraction form
    639,169.84/882,024.72 = 367,046.20/x
  3. Step 3: Cross multiply
    639,169.84x = 882,024.72 × 367,046.20
  4. Step 4: Simplify right side
    639,169.84x = 323,743,821,782.06
  5. Step 5: Solve for x
    x = 323,743,821,782.06/639,169.84
  6. Step 6: Final answer
    x = 506,506.72

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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.