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Finding the Fourth Proportional to 528,014.80, 792,022.20 and 512,462.80

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Solution

The fourth proportional to 528,014.80, 792,022.20 and 512,462.80 is: 768,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,014.80 : 792,022.20 = 512,462.80 : x
  2. Step 2: Convert to fraction form
    528,014.80/792,022.20 = 512,462.80/x
  3. Step 3: Cross multiply
    528,014.80x = 792,022.20 × 512,462.80
  4. Step 4: Simplify right side
    528,014.80x = 405,881,914,274.16
  5. Step 5: Solve for x
    x = 405,881,914,274.16/528,014.80
  6. Step 6: Final answer
    x = 768,694.20

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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.