Home / 830,027.95-1,145,408.32-462,486.09

Finding the Fourth Proportional to 830,027.95, 1,145,408.32 and 462,486.09

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Solution

The fourth proportional to 830,027.95, 1,145,408.32 and 462,486.09 is: 638,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,027.95 : 1,145,408.32 = 462,486.09 : x
  2. Step 2: Convert to fraction form
    830,027.95/1,145,408.32 = 462,486.09/x
  3. Step 3: Cross multiply
    830,027.95x = 1,145,408.32 × 462,486.09
  4. Step 4: Simplify right side
    830,027.95x = 529,735,418,536.35
  5. Step 5: Solve for x
    x = 529,735,418,536.35/830,027.95
  6. Step 6: Final answer
    x = 638,213.96

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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.