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Finding the Fourth Proportional to 545,199.60, 752,608.07 and 388,136.77

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Solution

The fourth proportional to 545,199.60, 752,608.07 and 388,136.77 is: 535,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,199.60 : 752,608.07 = 388,136.77 : x
  2. Step 2: Convert to fraction form
    545,199.60/752,608.07 = 388,136.77/x
  3. Step 3: Cross multiply
    545,199.60x = 752,608.07 × 388,136.77
  4. Step 4: Simplify right side
    545,199.60x = 292,114,865,365.73
  5. Step 5: Solve for x
    x = 292,114,865,365.73/545,199.60
  6. Step 6: Final answer
    x = 535,794.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.