Home / 768,739.80-1,153,109.70-488,803.80

Finding the Fourth Proportional to 768,739.80, 1,153,109.70 and 488,803.80

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Solution

The fourth proportional to 768,739.80, 1,153,109.70 and 488,803.80 is: 733,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,739.80 : 1,153,109.70 = 488,803.80 : x
  2. Step 2: Convert to fraction form
    768,739.80/1,153,109.70 = 488,803.80/x
  3. Step 3: Cross multiply
    768,739.80x = 1,153,109.70 × 488,803.80
  4. Step 4: Simplify right side
    768,739.80x = 563,644,403,176.86
  5. Step 5: Solve for x
    x = 563,644,403,176.86/768,739.80
  6. Step 6: Final answer
    x = 733,205.70

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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.