Home / 1,242,032.17-1,863,047.68-389,170.85

Finding the Fourth Proportional to 1,242,032.17, 1,863,047.68 and 389,170.85

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Solution

The fourth proportional to 1,242,032.17, 1,863,047.68 and 389,170.85 is: 583,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,032.17 : 1,863,047.68 = 389,170.85 : x
  2. Step 2: Convert to fraction form
    1,242,032.17/1,863,047.68 = 389,170.85/x
  3. Step 3: Cross multiply
    1,242,032.17x = 1,863,047.68 × 389,170.85
  4. Step 4: Simplify right side
    1,242,032.17x = 725,043,854,100.14
  5. Step 5: Solve for x
    x = 725,043,854,100.14/1,242,032.17
  6. Step 6: Final answer
    x = 583,756.10

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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.