Home / 553,911.20-831,006.76-154,551.72

Finding the Fourth Proportional to 553,911.20, 831,006.76 and 154,551.72

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Solution

The fourth proportional to 553,911.20, 831,006.76 and 154,551.72 is: 231,866.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,911.20 : 831,006.76 = 154,551.72 : x
  2. Step 2: Convert to fraction form
    553,911.20/831,006.76 = 154,551.72/x
  3. Step 3: Cross multiply
    553,911.20x = 831,006.76 × 154,551.72
  4. Step 4: Simplify right side
    553,911.20x = 128,433,523,316.87
  5. Step 5: Solve for x
    x = 128,433,523,316.87/553,911.20
  6. Step 6: Final answer
    x = 231,866.63

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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.