Home / 1,242,522.92-1,863,981.18-400,877.84

Finding the Fourth Proportional to 1,242,522.92, 1,863,981.18 and 400,877.84

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Solution

The fourth proportional to 1,242,522.92, 1,863,981.18 and 400,877.84 is: 601,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,522.92 : 1,863,981.18 = 400,877.84 : x
  2. Step 2: Convert to fraction form
    1,242,522.92/1,863,981.18 = 400,877.84/x
  3. Step 3: Cross multiply
    1,242,522.92x = 1,863,981.18 × 400,877.84
  4. Step 4: Simplify right side
    1,242,522.92x = 747,228,749,239.05
  5. Step 5: Solve for x
    x = 747,228,749,239.05/1,242,522.92
  6. Step 6: Final answer
    x = 601,380.25

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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.