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Finding the Fourth Proportional to 1,218,908.94, 1,828,844.55 and 377,526.30

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Solution

The fourth proportional to 1,218,908.94, 1,828,844.55 and 377,526.30 is: 566,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,908.94 : 1,828,844.55 = 377,526.30 : x
  2. Step 2: Convert to fraction form
    1,218,908.94/1,828,844.55 = 377,526.30/x
  3. Step 3: Cross multiply
    1,218,908.94x = 1,828,844.55 × 377,526.30
  4. Step 4: Simplify right side
    1,218,908.94x = 690,436,916,236.67
  5. Step 5: Solve for x
    x = 690,436,916,236.67/1,218,908.94
  6. Step 6: Final answer
    x = 566,438.47

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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.