Home / 780,678.04-1,170,218.94-443,005.24

Finding the Fourth Proportional to 780,678.04, 1,170,218.94 and 443,005.24

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Solution

The fourth proportional to 780,678.04, 1,170,218.94 and 443,005.24 is: 664,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,678.04 : 1,170,218.94 = 443,005.24 : x
  2. Step 2: Convert to fraction form
    780,678.04/1,170,218.94 = 443,005.24/x
  3. Step 3: Cross multiply
    780,678.04x = 1,170,218.94 × 443,005.24
  4. Step 4: Simplify right side
    780,678.04x = 518,413,122,367.25
  5. Step 5: Solve for x
    x = 518,413,122,367.25/780,678.04
  6. Step 6: Final answer
    x = 664,054.96

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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.