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Finding the Fourth Proportional to 579,662.88, 799,094.88 and 407,055.12

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Solution

The fourth proportional to 579,662.88, 799,094.88 and 407,055.12 is: 561,146.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,662.88 : 799,094.88 = 407,055.12 : x
  2. Step 2: Convert to fraction form
    579,662.88/799,094.88 = 407,055.12/x
  3. Step 3: Cross multiply
    579,662.88x = 799,094.88 × 407,055.12
  4. Step 4: Simplify right side
    579,662.88x = 325,275,662,269.79
  5. Step 5: Solve for x
    x = 325,275,662,269.79/579,662.88
  6. Step 6: Final answer
    x = 561,146.27

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Double scale
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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.