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Finding the Fourth Proportional to 550,007.20, 824,223.60 and 312,848.80

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Solution

The fourth proportional to 550,007.20, 824,223.60 and 312,848.80 is: 468,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,007.20 : 824,223.60 = 312,848.80 : x
  2. Step 2: Convert to fraction form
    550,007.20/824,223.60 = 312,848.80/x
  3. Step 3: Cross multiply
    550,007.20x = 824,223.60 × 312,848.80
  4. Step 4: Simplify right side
    550,007.20x = 257,857,364,191.68
  5. Step 5: Solve for x
    x = 257,857,364,191.68/550,007.20
  6. Step 6: Final answer
    x = 468,825.43

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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.