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Finding the Fourth Proportional to 550,006.20, 824,222.10 and 312,847.80

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Solution

The fourth proportional to 550,006.20, 824,222.10 and 312,847.80 is: 468,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,006.20 : 824,222.10 = 312,847.80 : x
  2. Step 2: Convert to fraction form
    550,006.20/824,222.10 = 312,847.80/x
  3. Step 3: Cross multiply
    550,006.20x = 824,222.10 × 312,847.80
  4. Step 4: Simplify right side
    550,006.20x = 257,856,070,696.38
  5. Step 5: Solve for x
    x = 257,856,070,696.38/550,006.20
  6. Step 6: Final answer
    x = 468,823.93

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1.5x scale

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.