Home / 554,015.40-831,432.70-221,829.80

Finding the Fourth Proportional to 554,015.40, 831,432.70 and 221,829.80

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Solution

The fourth proportional to 554,015.40, 831,432.70 and 221,829.80 is: 332,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,015.40 : 831,432.70 = 221,829.80 : x
  2. Step 2: Convert to fraction form
    554,015.40/831,432.70 = 221,829.80/x
  3. Step 3: Cross multiply
    554,015.40x = 831,432.70 × 221,829.80
  4. Step 4: Simplify right side
    554,015.40x = 184,436,549,554.46
  5. Step 5: Solve for x
    x = 184,436,549,554.46/554,015.40
  6. Step 6: Final answer
    x = 332,908.71

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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.