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Finding the Fourth Proportional to 1,226,574.07, 1,839,731.69 and 328,106.50

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Solution

The fourth proportional to 1,226,574.07, 1,839,731.69 and 328,106.50 is: 492,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,574.07 : 1,839,731.69 = 328,106.50 : x
  2. Step 2: Convert to fraction form
    1,226,574.07/1,839,731.69 = 328,106.50/x
  3. Step 3: Cross multiply
    1,226,574.07x = 1,839,731.69 × 328,106.50
  4. Step 4: Simplify right side
    1,226,574.07x = 603,627,924,104.45
  5. Step 5: Solve for x
    x = 603,627,924,104.45/1,226,574.07
  6. Step 6: Final answer
    x = 492,125.13

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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.