Home / 554,013.40-831,429.70-221,827.80

Finding the Fourth Proportional to 554,013.40, 831,429.70 and 221,827.80

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Solution

The fourth proportional to 554,013.40, 831,429.70 and 221,827.80 is: 332,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,013.40 : 831,429.70 = 221,827.80 : x
  2. Step 2: Convert to fraction form
    554,013.40/831,429.70 = 221,827.80/x
  3. Step 3: Cross multiply
    554,013.40x = 831,429.70 × 221,827.80
  4. Step 4: Simplify right side
    554,013.40x = 184,434,221,205.66
  5. Step 5: Solve for x
    x = 184,434,221,205.66/554,013.40
  6. Step 6: Final answer
    x = 332,905.70

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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.