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Finding the Fourth Proportional to 749,370.80, 1,034,067 and 422,665.82

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Solution

The fourth proportional to 749,370.80, 1,034,067 and 422,665.82 is: 583,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,370.80 : 1,034,067 = 422,665.82 : x
  2. Step 2: Convert to fraction form
    749,370.80/1,034,067 = 422,665.82/x
  3. Step 3: Cross multiply
    749,370.80x = 1,034,067 × 422,665.82
  4. Step 4: Simplify right side
    749,370.80x = 437,064,776,489.94
  5. Step 5: Solve for x
    x = 437,064,776,489.94/749,370.80
  6. Step 6: Final answer
    x = 583,242.34

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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.