Home / 450,408.35-621,788.45-259,384.83

Finding the Fourth Proportional to 450,408.35, 621,788.45 and 259,384.83

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Solution

The fourth proportional to 450,408.35, 621,788.45 and 259,384.83 is: 358,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,408.35 : 621,788.45 = 259,384.83 : x
  2. Step 2: Convert to fraction form
    450,408.35/621,788.45 = 259,384.83/x
  3. Step 3: Cross multiply
    450,408.35x = 621,788.45 × 259,384.83
  4. Step 4: Simplify right side
    450,408.35x = 161,282,490,102.29
  5. Step 5: Solve for x
    x = 161,282,490,102.29/450,408.35
  6. Step 6: Final answer
    x = 358,080.60

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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.