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Finding the Fourth Proportional to 550,005.20, 824,220.60 and 312,846.80

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Solution

The fourth proportional to 550,005.20, 824,220.60 and 312,846.80 is: 468,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,005.20 : 824,220.60 = 312,846.80 : x
  2. Step 2: Convert to fraction form
    550,005.20/824,220.60 = 312,846.80/x
  3. Step 3: Cross multiply
    550,005.20x = 824,220.60 × 312,846.80
  4. Step 4: Simplify right side
    550,005.20x = 257,854,777,204.08
  5. Step 5: Solve for x
    x = 257,854,777,204.08/550,005.20
  6. Step 6: Final answer
    x = 468,822.44

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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.