Home / 768,216.96-1,060,041.60-428,699.52

Finding the Fourth Proportional to 768,216.96, 1,060,041.60 and 428,699.52

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Solution

The fourth proportional to 768,216.96, 1,060,041.60 and 428,699.52 is: 591,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,216.96 : 1,060,041.60 = 428,699.52 : x
  2. Step 2: Convert to fraction form
    768,216.96/1,060,041.60 = 428,699.52/x
  3. Step 3: Cross multiply
    768,216.96x = 1,060,041.60 × 428,699.52
  4. Step 4: Simplify right side
    768,216.96x = 454,439,325,100.03
  5. Step 5: Solve for x
    x = 454,439,325,100.03/768,216.96
  6. Step 6: Final answer
    x = 591,550.76

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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.