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Finding the Fourth Proportional to 545,201.20, 817,801.80 and 510,209.20

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Solution

The fourth proportional to 545,201.20, 817,801.80 and 510,209.20 is: 765,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,201.20 : 817,801.80 = 510,209.20 : x
  2. Step 2: Convert to fraction form
    545,201.20/817,801.80 = 510,209.20/x
  3. Step 3: Cross multiply
    545,201.20x = 817,801.80 × 510,209.20
  4. Step 4: Simplify right side
    545,201.20x = 417,250,002,136.56
  5. Step 5: Solve for x
    x = 417,250,002,136.56/545,201.20
  6. Step 6: Final answer
    x = 765,313.80

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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.