Home / 840,395.16-1,159,719.12-477,858.60

Finding the Fourth Proportional to 840,395.16, 1,159,719.12 and 477,858.60

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Solution

The fourth proportional to 840,395.16, 1,159,719.12 and 477,858.60 is: 659,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,395.16 : 1,159,719.12 = 477,858.60 : x
  2. Step 2: Convert to fraction form
    840,395.16/1,159,719.12 = 477,858.60/x
  3. Step 3: Cross multiply
    840,395.16x = 1,159,719.12 × 477,858.60
  4. Step 4: Simplify right side
    840,395.16x = 554,181,755,076.43
  5. Step 5: Solve for x
    x = 554,181,755,076.43/840,395.16
  6. Step 6: Final answer
    x = 659,429.97

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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.