Home / 847,395.75-1,169,121.60-479,822.64

Finding the Fourth Proportional to 847,395.75, 1,169,121.60 and 479,822.64

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Solution

The fourth proportional to 847,395.75, 1,169,121.60 and 479,822.64 is: 661,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,395.75 : 1,169,121.60 = 479,822.64 : x
  2. Step 2: Convert to fraction form
    847,395.75/1,169,121.60 = 479,822.64/x
  3. Step 3: Cross multiply
    847,395.75x = 1,169,121.60 × 479,822.64
  4. Step 4: Simplify right side
    847,395.75x = 560,971,016,977.23
  5. Step 5: Solve for x
    x = 560,971,016,977.23/847,395.75
  6. Step 6: Final answer
    x = 661,994.14

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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.