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Finding the Fourth Proportional to 672,802.85, 928,454.22 and 370,996.85

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Solution

The fourth proportional to 672,802.85, 928,454.22 and 370,996.85 is: 511,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,802.85 : 928,454.22 = 370,996.85 : x
  2. Step 2: Convert to fraction form
    672,802.85/928,454.22 = 370,996.85/x
  3. Step 3: Cross multiply
    672,802.85x = 928,454.22 × 370,996.85
  4. Step 4: Simplify right side
    672,802.85x = 344,453,593,310.34
  5. Step 5: Solve for x
    x = 344,453,593,310.34/672,802.85
  6. Step 6: Final answer
    x = 511,968.09

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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.