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Finding the Fourth Proportional to 612,004.05, 918,200.48 and 274,914.45

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Solution

The fourth proportional to 612,004.05, 918,200.48 and 274,914.45 is: 412,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,004.05 : 918,200.48 = 274,914.45 : x
  2. Step 2: Convert to fraction form
    612,004.05/918,200.48 = 274,914.45/x
  3. Step 3: Cross multiply
    612,004.05x = 918,200.48 × 274,914.45
  4. Step 4: Simplify right side
    612,004.05x = 252,426,578,574.36
  5. Step 5: Solve for x
    x = 252,426,578,574.36/612,004.05
  6. Step 6: Final answer
    x = 412,459.00

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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.