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Finding the Fourth Proportional to 672,555, 928,145.34 and 370,768.44

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Solution

The fourth proportional to 672,555, 928,145.34 and 370,768.44 is: 511,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,555 : 928,145.34 = 370,768.44 : x
  2. Step 2: Convert to fraction form
    672,555/928,145.34 = 370,768.44/x
  3. Step 3: Cross multiply
    672,555x = 928,145.34 × 370,768.44
  4. Step 4: Simplify right side
    672,555x = 344,126,999,805.07
  5. Step 5: Solve for x
    x = 344,126,999,805.07/672,555
  6. Step 6: Final answer
    x = 511,671.16

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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.