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Finding the Fourth Proportional to 672,937.54, 928,628.14 and 371,131.54

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Solution

The fourth proportional to 672,937.54, 928,628.14 and 371,131.54 is: 512,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,937.54 : 928,628.14 = 371,131.54 : x
  2. Step 2: Convert to fraction form
    672,937.54/928,628.14 = 371,131.54/x
  3. Step 3: Cross multiply
    672,937.54x = 928,628.14 × 371,131.54
  4. Step 4: Simplify right side
    672,937.54x = 344,643,191,685.54
  5. Step 5: Solve for x
    x = 344,643,191,685.54/672,937.54
  6. Step 6: Final answer
    x = 512,147.37

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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.