Home / 768,253.09-1,152,379.64-207,287.59

Finding the Fourth Proportional to 768,253.09, 1,152,379.64 and 207,287.59

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Solution

The fourth proportional to 768,253.09, 1,152,379.64 and 207,287.59 is: 310,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,253.09 : 1,152,379.64 = 207,287.59 : x
  2. Step 2: Convert to fraction form
    768,253.09/1,152,379.64 = 207,287.59/x
  3. Step 3: Cross multiply
    768,253.09x = 1,152,379.64 × 207,287.59
  4. Step 4: Simplify right side
    768,253.09x = 238,873,998,340.67
  5. Step 5: Solve for x
    x = 238,873,998,340.67/768,253.09
  6. Step 6: Final answer
    x = 310,931.39

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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.