Home / 692,022.72-955,058.16-420,027.96

Finding the Fourth Proportional to 692,022.72, 955,058.16 and 420,027.96

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Solution

The fourth proportional to 692,022.72, 955,058.16 and 420,027.96 is: 579,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,022.72 : 955,058.16 = 420,027.96 : x
  2. Step 2: Convert to fraction form
    692,022.72/955,058.16 = 420,027.96/x
  3. Step 3: Cross multiply
    692,022.72x = 955,058.16 × 420,027.96
  4. Step 4: Simplify right side
    692,022.72x = 401,151,130,626.15
  5. Step 5: Solve for x
    x = 401,151,130,626.15/692,022.72
  6. Step 6: Final answer
    x = 579,679.13

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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.