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Finding the Fourth Proportional to 1,270,042, 1,905,063.04 and 383,578

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Solution

The fourth proportional to 1,270,042, 1,905,063.04 and 383,578 is: 575,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,042 : 1,905,063.04 = 383,578 : x
  2. Step 2: Convert to fraction form
    1,270,042/1,905,063.04 = 383,578/x
  3. Step 3: Cross multiply
    1,270,042x = 1,905,063.04 × 383,578
  4. Step 4: Simplify right side
    1,270,042x = 730,740,270,757.12
  5. Step 5: Solve for x
    x = 730,740,270,757.12/1,270,042
  6. Step 6: Final answer
    x = 575,367.01

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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.