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Finding the Fourth Proportional to 437,993, 604,430.34 and 236,789

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Solution

The fourth proportional to 437,993, 604,430.34 and 236,789 is: 326,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,993 : 604,430.34 = 236,789 : x
  2. Step 2: Convert to fraction form
    437,993/604,430.34 = 236,789/x
  3. Step 3: Cross multiply
    437,993x = 604,430.34 × 236,789
  4. Step 4: Simplify right side
    437,993x = 143,122,455,778.26
  5. Step 5: Solve for x
    x = 143,122,455,778.26/437,993
  6. Step 6: Final answer
    x = 326,768.82

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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.