Home / 808,410.30-1,212,408.54-239,658.41

Finding the Fourth Proportional to 808,410.30, 1,212,408.54 and 239,658.41

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Solution

The fourth proportional to 808,410.30, 1,212,408.54 and 239,658.41 is: 359,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,410.30 : 1,212,408.54 = 239,658.41 : x
  2. Step 2: Convert to fraction form
    808,410.30/1,212,408.54 = 239,658.41/x
  3. Step 3: Cross multiply
    808,410.30x = 1,212,408.54 × 239,658.41
  4. Step 4: Simplify right side
    808,410.30x = 290,563,897,803.50
  5. Step 5: Solve for x
    x = 290,563,897,803.50/808,410.30
  6. Step 6: Final answer
    x = 359,426.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.