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Finding the Fourth Proportional to 560,669.08, 774,735.42 and 399,243.88

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Solution

The fourth proportional to 560,669.08, 774,735.42 and 399,243.88 is: 551,677.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,669.08 : 774,735.42 = 399,243.88 : x
  2. Step 2: Convert to fraction form
    560,669.08/774,735.42 = 399,243.88/x
  3. Step 3: Cross multiply
    560,669.08x = 774,735.42 × 399,243.88
  4. Step 4: Simplify right side
    560,669.08x = 309,308,375,054.23
  5. Step 5: Solve for x
    x = 309,308,375,054.23/560,669.08
  6. Step 6: Final answer
    x = 551,677.25

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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.