Home / 1,242,509.67-1,863,787.83-389,562.42

Finding the Fourth Proportional to 1,242,509.67, 1,863,787.83 and 389,562.42

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Solution

The fourth proportional to 1,242,509.67, 1,863,787.83 and 389,562.42 is: 584,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,509.67 : 1,863,787.83 = 389,562.42 : x
  2. Step 2: Convert to fraction form
    1,242,509.67/1,863,787.83 = 389,562.42/x
  3. Step 3: Cross multiply
    1,242,509.67x = 1,863,787.83 × 389,562.42
  4. Step 4: Simplify right side
    1,242,509.67x = 726,061,697,421.35
  5. Step 5: Solve for x
    x = 726,061,697,421.35/1,242,509.67
  6. Step 6: Final answer
    x = 584,350.94

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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.