Home / 768,002.80-1,152,004.20-517,327.60

Finding the Fourth Proportional to 768,002.80, 1,152,004.20 and 517,327.60

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Solution

The fourth proportional to 768,002.80, 1,152,004.20 and 517,327.60 is: 775,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,002.80 : 1,152,004.20 = 517,327.60 : x
  2. Step 2: Convert to fraction form
    768,002.80/1,152,004.20 = 517,327.60/x
  3. Step 3: Cross multiply
    768,002.80x = 1,152,004.20 × 517,327.60
  4. Step 4: Simplify right side
    768,002.80x = 595,963,567,975.92
  5. Step 5: Solve for x
    x = 595,963,567,975.92/768,002.80
  6. Step 6: Final answer
    x = 775,991.40

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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.