Home / 1,242,044.16-1,863,063.91-389,181.10

Finding the Fourth Proportional to 1,242,044.16, 1,863,063.91 and 389,181.10

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Solution

The fourth proportional to 1,242,044.16, 1,863,063.91 and 389,181.10 is: 583,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,044.16 : 1,863,063.91 = 389,181.10 : x
  2. Step 2: Convert to fraction form
    1,242,044.16/1,863,063.91 = 389,181.10/x
  3. Step 3: Cross multiply
    1,242,044.16x = 1,863,063.91 × 389,181.10
  4. Step 4: Simplify right side
    1,242,044.16x = 725,069,261,864.10
  5. Step 5: Solve for x
    x = 725,069,261,864.10/1,242,044.16
  6. Step 6: Final answer
    x = 583,770.92

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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.